FR2186578A1 - - Google Patents

Info

Publication number
FR2186578A1
FR2186578A1 FR7319859A FR7319859A FR2186578A1 FR 2186578 A1 FR2186578 A1 FR 2186578A1 FR 7319859 A FR7319859 A FR 7319859A FR 7319859 A FR7319859 A FR 7319859A FR 2186578 A1 FR2186578 A1 FR 2186578A1
Authority
FR
France
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
FR7319859A
Other languages
French (fr)
Other versions
FR2186578B1 (en
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.)
Volvo Construction Equipment AB
Original Assignee
Bolinder Munktell AB
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 Bolinder Munktell AB filed Critical Bolinder Munktell AB
Publication of FR2186578A1 publication Critical patent/FR2186578A1/fr
Application granted granted Critical
Publication of FR2186578B1 publication Critical patent/FR2186578B1/fr
Expired 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
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
    • 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
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
    • 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
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Actuator (AREA)
  • Braking Arrangements (AREA)
FR7319859A 1972-05-31 1973-05-30 Expired FR2186578B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE712972A SE363368B (en) 1972-05-31 1972-05-31

Publications (2)

Publication Number Publication Date
FR2186578A1 true FR2186578A1 (en) 1974-01-11
FR2186578B1 FR2186578B1 (en) 1976-04-23

Family

ID=20270490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7319859A Expired FR2186578B1 (en) 1972-05-31 1973-05-30

Country Status (4)

Country Link
DE (1) DE2326382C3 (en)
FR (1) FR2186578B1 (en)
GB (1) GB1377726A (en)
SE (1) SE363368B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2304801A1 (en) * 1975-03-17 1976-10-15 Massey Ferguson Inc SWIVEL MECHANISM
FR2395412A1 (en) * 1977-06-23 1979-01-19 Poclain Sa AUTOMATIC ROTATION STOP DEVICE OF A HYDRAULIC MOTOR

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201509A (en) * 1978-10-04 1980-05-06 Ford Motor Company Backhoe swing cylinder hydraulic circuit
US9623717B1 (en) * 2015-10-13 2017-04-18 Deere & Company Work vehicles with cylinder cushioning arrangement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2304801A1 (en) * 1975-03-17 1976-10-15 Massey Ferguson Inc SWIVEL MECHANISM
FR2395412A1 (en) * 1977-06-23 1979-01-19 Poclain Sa AUTOMATIC ROTATION STOP DEVICE OF A HYDRAULIC MOTOR

Also Published As

Publication number Publication date
SE363368B (en) 1974-01-14
FR2186578B1 (en) 1976-04-23
DE2326382A1 (en) 1973-12-13
DE2326382C3 (en) 1978-10-26
DE2326382B2 (en) 1978-02-23
GB1377726A (en) 1974-12-18

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Legal Events

Date Code Title Description
ST Notification of lapse