IT1109928B - Dispositivo per la registrazione della lama di macchine per movimento terra - Google Patents

Dispositivo per la registrazione della lama di macchine per movimento terra

Info

Publication number
IT1109928B
IT1109928B IT19056/79A IT1905679A IT1109928B IT 1109928 B IT1109928 B IT 1109928B IT 19056/79 A IT19056/79 A IT 19056/79A IT 1905679 A IT1905679 A IT 1905679A IT 1109928 B IT1109928 B IT 1109928B
Authority
IT
Italy
Prior art keywords
adjustment device
moving blade
earth moving
blade adjustment
earth
Prior art date
Application number
IT19056/79A
Other languages
English (en)
Other versions
IT7919056A0 (it
Original Assignee
Massey Ferguson Services Nv
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 Massey Ferguson Services Nv filed Critical Massey Ferguson Services Nv
Publication of IT7919056A0 publication Critical patent/IT7919056A0/it
Application granted granted Critical
Publication of IT1109928B publication Critical patent/IT1109928B/it

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
    • 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
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
    • E02F3/844—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically
    • 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
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Earth Drilling (AREA)
  • Actuator (AREA)
IT19056/79A 1978-01-13 1979-01-04 Dispositivo per la registrazione della lama di macchine per movimento terra IT1109928B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782801296 DE2801296A1 (de) 1978-01-13 1978-01-13 Vorrichtung zur veraenderung der einstellung eines schwenkschildes von erdbewegungsmaschinen

Publications (2)

Publication Number Publication Date
IT7919056A0 IT7919056A0 (it) 1979-01-04
IT1109928B true IT1109928B (it) 1985-12-23

Family

ID=6029400

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19056/79A IT1109928B (it) 1978-01-13 1979-01-04 Dispositivo per la registrazione della lama di macchine per movimento terra

Country Status (5)

Country Link
US (1) US4243106A (it)
DE (1) DE2801296A1 (it)
FR (1) FR2414593A1 (it)
GB (1) GB1602909A (it)
IT (1) IT1109928B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030005A1 (de) * 1980-08-08 1982-02-18 Maschinenfabrik Walter Scheele GmbH & Co KG, 4750 Unna-Massen Betonpumpe mit zwei pumpenzylindern
US4350080A (en) * 1980-12-16 1982-09-21 Page John S Jr Apparatus to pump multiple wells
US4729283A (en) * 1983-11-11 1988-03-08 Delibes Pty. Ltd. Valve for use with hydraulic ram assemblies
US20070163259A1 (en) * 2005-12-29 2007-07-19 Timothy Webster Fluid Linkage for Mechanical Linkage Replacement and Servocontrol
US10647347B2 (en) * 2016-09-29 2020-05-12 Steering Solutions Ip Holding Corporation Power steering gear assembly having an end of travel valve assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004524A (en) * 1960-07-20 1961-10-17 Austin Hydraulic cylinder and piston arrangement
US3184920A (en) * 1963-06-12 1965-05-25 Caterpillar Tractor Co Leakage control for bulldozer pitch jack circuit
US3184869A (en) * 1963-09-30 1965-05-25 Allis Chalmers Mfg Co Dozer hydraulic tilt and pitch control
US3315570A (en) * 1965-01-07 1967-04-25 Gen Motors Corp Pressure relieving means
US3311026A (en) * 1965-12-27 1967-03-28 Caterpillar Tractor Co Bypass valve for hydraulic jacks
US3515224A (en) * 1967-10-05 1970-06-02 Case Co J I Hydraulic cylinder control for bulldozer
US3581829A (en) * 1968-10-17 1971-06-01 Case Co J I Hydraulic control for earth moving implement
US3631930A (en) * 1969-07-07 1972-01-04 Caterpillar Tractor Co Mounting arrangement for bulldozer blades
US3705631A (en) * 1971-05-27 1972-12-12 Case Co J I Hydraulic tilt and pitch control for dozer blade
US3774696A (en) * 1971-10-13 1973-11-27 Case Co J I Pitch-tilt hydraulic circuits for dozer blades
US3991832A (en) * 1975-07-14 1976-11-16 Deere & Company Hydraulically tiltable and anglable dozer blade and mounting therefor
US4067394A (en) * 1976-01-22 1978-01-10 White Farm Equipment Company Implement with automatic sequencing valve and system

Also Published As

Publication number Publication date
GB1602909A (en) 1981-11-18
FR2414593B1 (it) 1983-04-15
FR2414593A1 (fr) 1979-08-10
DE2801296A1 (de) 1979-07-19
IT7919056A0 (it) 1979-01-04
US4243106A (en) 1981-01-06

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