EP2573279A3 - Hydraulic ram for an excavator coupler - Google Patents

Hydraulic ram for an excavator coupler Download PDF

Info

Publication number
EP2573279A3
EP2573279A3 EP12185543.1A EP12185543A EP2573279A3 EP 2573279 A3 EP2573279 A3 EP 2573279A3 EP 12185543 A EP12185543 A EP 12185543A EP 2573279 A3 EP2573279 A3 EP 2573279A3
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
working chamber
head end
distal end
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
EP12185543.1A
Other languages
German (de)
French (fr)
Other versions
EP2573279A2 (en
EP2573279B1 (en
Inventor
Ian Hill
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.)
Hill Ian
Original Assignee
Hill Ian
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 Hill Ian filed Critical Hill Ian
Publication of EP2573279A2 publication Critical patent/EP2573279A2/en
Publication of EP2573279A3 publication Critical patent/EP2573279A3/en
Application granted granted Critical
Publication of EP2573279B1 publication Critical patent/EP2573279B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • 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
    • E02F9/26—Indicating devices
    • E02F9/264—Sensors and their calibration for indicating the position of the work tool
    • 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
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)

Abstract

A hydraulic ram for an excavator coupler comprising a cylinder having a head end adapted to be connected to one of the body of the excavator coupler and a latching hook thereof, a piston slidably mounted in the cylinder between a retracted position adjacent the head end of the cylinder and an extended position adjacent a distal end of the cylinder, opposite said head end, said piston dividing the cylinder into a first working chamber adjacent said head end of the cylinder and a second working chamber adjacent said distal end of the cylinder, a piston rod extending from the piston through said second working chamber of the cylinder to extend out of the distal end of the cylinder, a distal end of the piston rod being adapted to be connected to the other of the body of the excavator coupler and said latching hook thereof, a first fluid supply port being provided for supplying pressurised fluid into said first working chamber to urge the piston and piston rod away from said head end of the cylinder towards said extended position, wherein a signal port is provided in the side wall of the cylinder, said signal port being arranged to communicate with said first working chamber when the piston is in its extended position.
EP12185543.1A 2011-09-21 2012-09-21 Excavator coupler with hydraulic ram Active EP2573279B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1116345.8A GB201116345D0 (en) 2011-09-21 2011-09-21 Hydraulic ram for an excavator coupler

Publications (3)

Publication Number Publication Date
EP2573279A2 EP2573279A2 (en) 2013-03-27
EP2573279A3 true EP2573279A3 (en) 2016-12-07
EP2573279B1 EP2573279B1 (en) 2019-06-19

Family

ID=44937655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12185543.1A Active EP2573279B1 (en) 2011-09-21 2012-09-21 Excavator coupler with hydraulic ram

Country Status (2)

Country Link
EP (1) EP2573279B1 (en)
GB (1) GB201116345D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20131315A1 (en) * 2013-08-02 2015-02-03 Antonio Ferraro LOCKING DEVICE FOR TOOLS
DE102018115949A1 (en) 2018-07-02 2020-01-02 Oilquick Deutschland Gmbh Quick coupler
SE2130194A1 (en) * 2021-07-09 2023-01-10 Smp Parts Ab Quick coupling device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705656A (en) * 1971-02-18 1972-12-12 Deere & Co Quick-attach loader bucket
US4391563A (en) * 1981-08-31 1983-07-05 J. I. Case Company Bucket position indicator assembly
JP2002323005A (en) * 2001-04-26 2002-11-08 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Hydraulic cylinder drive unit
GB2424637A (en) * 2005-03-30 2006-10-04 Thomas Francis Sheedy A quick hitch coupler with safety mechanism
US20100161184A1 (en) * 2008-12-23 2010-06-24 Caterpillar Inc. Method and apparatus for calculating payload weight

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705656A (en) * 1971-02-18 1972-12-12 Deere & Co Quick-attach loader bucket
US4391563A (en) * 1981-08-31 1983-07-05 J. I. Case Company Bucket position indicator assembly
JP2002323005A (en) * 2001-04-26 2002-11-08 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Hydraulic cylinder drive unit
GB2424637A (en) * 2005-03-30 2006-10-04 Thomas Francis Sheedy A quick hitch coupler with safety mechanism
US20100161184A1 (en) * 2008-12-23 2010-06-24 Caterpillar Inc. Method and apparatus for calculating payload weight

Also Published As

Publication number Publication date
GB201116345D0 (en) 2011-11-02
EP2573279A2 (en) 2013-03-27
EP2573279B1 (en) 2019-06-19

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