CH680813A5 - - Google Patents

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Info

Publication number
CH680813A5
CH680813A5 CH2792/89A CH279289A CH680813A5 CH 680813 A5 CH680813 A5 CH 680813A5 CH 2792/89 A CH2792/89 A CH 2792/89A CH 279289 A CH279289 A CH 279289A CH 680813 A5 CH680813 A5 CH 680813A5
Authority
CH
Switzerland
Prior art keywords
control
valves
pressure medium
operating device
valve
Prior art date
Application number
CH2792/89A
Other languages
German (de)
English (en)
Inventor
Rauno Rajala
Juha Piipponen
Original Assignee
Tampella Oy 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 Tampella Oy Ab filed Critical Tampella Oy Ab
Publication of CH680813A5 publication Critical patent/CH680813A5/de

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/025Rock drills, i.e. jumbo drills
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/022Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003Systems with load-holding valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/505Pressure control characterised by the type of pressure control means
    • F15B2211/50509Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
CH2792/89A 1988-07-27 1989-07-26 CH680813A5 (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI883528A FI83256C (fi) 1988-07-27 1988-07-27 Anordning foer anvaendning av hydrauliska manoeveranordningar i en bergborrsbom.

Publications (1)

Publication Number Publication Date
CH680813A5 true CH680813A5 (fi) 1992-11-13

Family

ID=8526868

Family Applications (1)

Application Number Title Priority Date Filing Date
CH2792/89A CH680813A5 (fi) 1988-07-27 1989-07-26

Country Status (14)

Country Link
JP (1) JPH02217586A (fi)
CN (1) CN1039870A (fi)
AT (1) AT393870B (fi)
AU (1) AU615088B2 (fi)
CA (1) CA1331126C (fi)
CH (1) CH680813A5 (fi)
DE (1) DE3924469A1 (fi)
FI (1) FI83256C (fi)
FR (1) FR2634817B1 (fi)
GB (1) GB2224081B (fi)
IT (1) IT1235268B (fi)
NO (1) NO178837C (fi)
SE (1) SE469570B (fi)
ZA (1) ZA895494B (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118822A1 (de) * 1991-06-07 1992-12-10 Rexroth Mannesmann Gmbh Steuereinrichtung zur zu- und abfuehrung von arbeitsfluessigkeit bei einem hydraulischen arbeitsraum
DE4436548C2 (de) * 1994-10-13 2000-12-21 Mannesmann Rexroth Ag Ventilanordnung zur Betätigung eines hydraulischen Verbrauchers
KR100474259B1 (ko) * 1996-11-26 2005-06-20 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설기계의작업장치용실린더를위한유압장치
DE102007049604B4 (de) * 2007-10-16 2014-08-21 Marco Systemanalyse Und Entwicklung Gmbh Ventilanordnung
EP2341253B8 (en) * 2010-01-05 2013-10-16 Nem S.R.L. Device for piloting by means of a substantially incompressible fluid
IT202100021647A1 (it) * 2021-08-10 2023-02-10 Omt Group S P A Dispositivo fluidodinamico di controllo, per attuatori a doppio effetto
EP4411147A1 (en) 2023-02-02 2024-08-07 OMT Group S.p.A. Fluid operated assembly controlling double-acting actuators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT303647B (de) * 1970-06-23 1972-12-11 Boehler & Co Ag Geb Bohrstütze
FR2459895A1 (fr) * 1979-06-25 1981-01-16 Secoma Dispositif d'alimentation et de commande a distance pour une pluralite de recepteurs hydrauliques disposes sur un meme engin
WO1982001401A1 (en) * 1980-10-17 1982-04-29 Golan Kenneth F Valve actuator with hydraulic latching
DE3044144A1 (de) * 1980-11-24 1982-09-09 Linde Ag, 6200 Wiesbaden Hydrostatisches antriebssystem mit einer einstellbaren pumpe und mehreren verbrauchern
FI79884C (fi) * 1988-06-03 1990-03-12 Tampella Oy Ab Foerfarande och anordning foer borrning av ett haol i berg.

Also Published As

Publication number Publication date
NO893044D0 (no) 1989-07-26
NO178837B (no) 1996-03-04
NO178837C (no) 1996-06-12
IT1235268B (it) 1992-06-26
CA1331126C (en) 1994-08-02
DE3924469A1 (de) 1990-02-01
FR2634817A1 (fr) 1990-02-02
ATA179889A (de) 1991-06-15
FI883528A0 (fi) 1988-07-27
FR2634817B1 (fr) 1992-06-19
IT8921291A0 (it) 1989-07-25
AT393870B (de) 1991-12-27
JPH02217586A (ja) 1990-08-30
FI83256B (fi) 1991-02-28
CN1039870A (zh) 1990-02-21
GB8916311D0 (en) 1989-08-31
FI883528A (fi) 1990-01-28
SE469570B (sv) 1993-07-26
AU615088B2 (en) 1991-09-19
GB2224081B (en) 1992-09-16
SE8902602L (sv) 1990-01-28
AU3828989A (en) 1990-02-01
FI83256C (fi) 1991-06-10
SE8902602D0 (sv) 1989-07-26
GB2224081A (en) 1990-04-25
ZA895494B (en) 1990-04-25
NO893044L (no) 1990-01-29

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Legal Events

Date Code Title Description
PL Patent ceased