[go: up one dir, main page]

SE456682B - Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad - Google Patents

Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad

Info

Publication number
SE456682B
SE456682B SE8702668A SE8702668A SE456682B SE 456682 B SE456682 B SE 456682B SE 8702668 A SE8702668 A SE 8702668A SE 8702668 A SE8702668 A SE 8702668A SE 456682 B SE456682 B SE 456682B
Authority
SE
Sweden
Prior art keywords
pressure
valve
hydraulic
valves
pressure relief
Prior art date
Application number
SE8702668A
Other languages
English (en)
Swedish (sv)
Other versions
SE8702668D0 (sv
Inventor
K-J Jonasson
B Tidbaeck
L-Aa Hedberg
A Wallin
Original Assignee
Maskin Ab Tube
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 Maskin Ab Tube filed Critical Maskin Ab Tube
Priority to SE8702668A priority Critical patent/SE456682B/sv
Publication of SE8702668D0 publication Critical patent/SE8702668D0/xx
Priority to US07/457,727 priority patent/US5044446A/en
Priority to EP88906169A priority patent/EP0377576B1/en
Priority to JP63505574A priority patent/JPH03500190A/ja
Priority to PCT/SE1988/000328 priority patent/WO1988010342A1/en
Priority to DE8888906169T priority patent/DE3868937D1/de
Priority to CA000569616A priority patent/CA1316794C/en
Publication of SE456682B publication Critical patent/SE456682B/sv
Priority to NO895212A priority patent/NO168127C/no
Priority to FI896247A priority patent/FI88949C/fi

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
    • E02F3/76—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Unwinding Webs (AREA)
SE8702668A 1987-06-26 1987-06-26 Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad SE456682B (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE8702668A SE456682B (sv) 1987-06-26 1987-06-26 Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad
US07/457,727 US5044446A (en) 1987-06-26 1988-06-16 Constant pressure regulation of grader blades
EP88906169A EP0377576B1 (en) 1987-06-26 1988-06-16 Constant pressure regulation of grader blades
JP63505574A JPH03500190A (ja) 1987-06-26 1988-06-16 グレーダーブレードの一定圧調節
PCT/SE1988/000328 WO1988010342A1 (en) 1987-06-26 1988-06-16 Constant pressure regulation of grader blades
DE8888906169T DE3868937D1 (de) 1987-06-26 1988-06-16 Unter konstantem druck gesteuertes planierschild.
CA000569616A CA1316794C (en) 1987-06-26 1988-06-16 Constant pressure regulation of grader blades
NO895212A NO168127C (no) 1987-06-26 1989-12-22 Fremgangsmaate og innretning for konstanttrykkregulering for et arbeidsblad paa f.eks. en veimaskin
FI896247A FI88949C (fi) 1987-06-26 1989-12-22 Foerfarande och system foer konstanttryckreglering av arbetsblad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8702668A SE456682B (sv) 1987-06-26 1987-06-26 Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad

Publications (2)

Publication Number Publication Date
SE8702668D0 SE8702668D0 (sv) 1987-06-26
SE456682B true SE456682B (sv) 1988-10-24

Family

ID=20368997

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8702668A SE456682B (sv) 1987-06-26 1987-06-26 Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad

Country Status (9)

Country Link
US (1) US5044446A (fi)
EP (1) EP0377576B1 (fi)
JP (1) JPH03500190A (fi)
CA (1) CA1316794C (fi)
DE (1) DE3868937D1 (fi)
FI (1) FI88949C (fi)
NO (1) NO168127C (fi)
SE (1) SE456682B (fi)
WO (1) WO1988010342A1 (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697452A (en) * 1995-12-05 1997-12-16 American Roller Bushing Corporation Sod roll laying apparatus and method
US5647439A (en) * 1995-12-14 1997-07-15 Caterpillar Inc. Implement control system for locating a surface interface and removing a layer of material
US5718115A (en) * 1996-05-31 1998-02-17 Aim, Inc. Constant force hydraulic control system
WO2001017330A1 (en) * 1999-09-03 2001-03-15 Wojanis James R Hydraulic plow balancing system
WO2004083528A1 (en) * 2003-03-17 2004-09-30 Kalannin Kaspek Oy Ice resurfacing machine as well as system and method for ice maintenance
US8858151B2 (en) * 2011-08-16 2014-10-14 Caterpillar Inc. Machine having hydraulically actuated implement system with down force control, and method
DE102014202766B4 (de) * 2014-02-14 2023-04-27 Thomas Löcher Anordnung zur Regelung eines hydraulischen Antriebselements
US10624263B2 (en) * 2016-06-21 2020-04-21 Macdon Industries Ltd Crop machine with an electronically controlled hydraulic cylinder flotation system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1954194A1 (de) * 1969-10-28 1971-05-06 Zinser Textilmaschinen Gmbh Hydraulische Antriebsvorrichtung zum Changieren von die Fadenaufwindung steuernden Baenken
GB1261134A (en) * 1969-11-05 1972-01-19 Ch Traktorny Zd Directional control valves for the power cylinders of operating elements of machines
US3872670A (en) * 1973-05-02 1975-03-25 Caterpillar Tractor Co Selectively actuatable shock absorbing system for an implement control circuit
US4024796A (en) * 1975-09-24 1977-05-24 Caterpillar Tractor Co. Float control electrical circuit for a blade
US4353423A (en) * 1977-09-21 1982-10-12 Kep Enterprises Hydraulic reset for tillage and seeding equipment
JPS5563003A (en) * 1978-11-01 1980-05-12 Caterpillar Tractor Co Hydraulic control circuit with quick drop valve
US4341149A (en) * 1979-08-30 1982-07-27 Caterpillar Tractor Co. Selectively actuatable fluid control system for a work element
US4372193A (en) * 1980-12-24 1983-02-08 Caterpillar Tractor Co. System with constant force actuator
DE3739525A1 (de) * 1987-11-21 1989-06-01 Orenstein & Koppel Ag Planierfahrzeug

Also Published As

Publication number Publication date
CA1316794C (en) 1993-04-27
NO895212D0 (no) 1989-12-22
WO1988010342A1 (en) 1988-12-29
FI896247A0 (fi) 1989-12-22
US5044446A (en) 1991-09-03
EP0377576A1 (en) 1990-07-18
NO895212L (no) 1989-12-22
EP0377576B1 (en) 1992-03-04
JPH03500190A (ja) 1991-01-17
NO168127C (no) 1992-01-15
FI88949C (fi) 1993-07-26
FI88949B (fi) 1993-04-15
DE3868937D1 (de) 1992-04-09
NO168127B (no) 1991-10-07
SE8702668D0 (sv) 1987-06-26

Similar Documents

Publication Publication Date Title
US2636290A (en) Automatic blade control for road graders and the like
US4408518A (en) Series self-leveling valve
US3414327A (en) Apparatus and methods for cutting concrete surfaces
WO2012082357A2 (en) Hydraulic system having dual tilt blade control
EP0665333A1 (en) Steering system for surface compacting machines
SE456682B (sv) Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad
US8973688B2 (en) Suspension system and control method for track-propelled machines
US20070098494A1 (en) Hydraulic leveling selection circuit for a work machine
US4852660A (en) Grader blade having a pressurized float position
US4709618A (en) Series self-leveling valve with single spool for unloading and relief
CN208842171U (zh) 一种适用于丘陵山区的双层可自动调节悬架
US4561342A (en) Series self-leveling valve
US6467553B1 (en) Hydraulic plow balancing system
DE3628427C2 (fi)
US4655250A (en) Open center unloading valve
US11111640B2 (en) Self-propelled construction machine
AT413927B (de) Pflug
US4723478A (en) Series self-leveling valve
US4019585A (en) Combined automatic and manual hydraulic control for motor grader blade
US20100158706A1 (en) Pressure change compensation arrangement for pump actuator
DE19648706A1 (de) Hydraulische Schaltung für einen Fahrzeugantrieb mit zwei Hydromotoren
WO1990009485A1 (en) Fluid control system for roadway grooving apparatus
DE19541190A1 (de) Hydraulische Anordnung zur Steuerung des Hubwerks einer mobilen Arbeitsmaschine
EP1574720A1 (de) Elektrohydraulische Steuervorrichtung
EP2597210B1 (de) Elektrohydraulische Steuervorrichtung

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8702668-8

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8702668-8

Format of ref document f/p: F