IT1235268B - Dispositivo per il funzionamento di mezzi idraulici di azionamento in un braccio per perforazione di rocce e simili costruzioni di braccio. - Google Patents
Dispositivo per il funzionamento di mezzi idraulici di azionamento in un braccio per perforazione di rocce e simili costruzioni di braccio.Info
- Publication number
- IT1235268B IT1235268B IT8921291A IT2129189A IT1235268B IT 1235268 B IT1235268 B IT 1235268B IT 8921291 A IT8921291 A IT 8921291A IT 2129189 A IT2129189 A IT 2129189A IT 1235268 B IT1235268 B IT 1235268B
- Authority
- IT
- Italy
- Prior art keywords
- arm
- hydraulic drive
- drive vehicles
- constructions
- similar
- Prior art date
Links
- 239000011435 rock Substances 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/025—Rock drills, i.e. jumbo drills
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
-
- 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
- F15B11/003—Systems with load-holding valves
-
- 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50545—Pressure 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)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
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 (2)
Publication Number | Publication Date |
---|---|
IT8921291A0 IT8921291A0 (it) | 1989-07-25 |
IT1235268B true IT1235268B (it) | 1992-06-26 |
Family
ID=8526868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8921291A IT1235268B (it) | 1988-07-27 | 1989-07-25 | Dispositivo per il funzionamento di mezzi idraulici di azionamento in un braccio per perforazione di rocce e simili costruzioni di braccio. |
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)
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)
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. |
-
1988
- 1988-07-27 FI FI883528A patent/FI83256C/fi not_active IP Right Cessation
-
1989
- 1989-07-17 GB GB8916311A patent/GB2224081B/en not_active Expired - Lifetime
- 1989-07-18 CA CA000605993A patent/CA1331126C/en not_active Expired - Fee Related
- 1989-07-19 ZA ZA895494A patent/ZA895494B/xx unknown
- 1989-07-20 AU AU38289/89A patent/AU615088B2/en not_active Ceased
- 1989-07-24 DE DE3924469A patent/DE3924469A1/de not_active Withdrawn
- 1989-07-25 IT IT8921291A patent/IT1235268B/it active
- 1989-07-25 JP JP1190699A patent/JPH02217586A/ja active Pending
- 1989-07-26 SE SE8902602A patent/SE469570B/sv not_active IP Right Cessation
- 1989-07-26 NO NO893044A patent/NO178837C/no unknown
- 1989-07-26 CH CH2792/89A patent/CH680813A5/de not_active IP Right Cessation
- 1989-07-26 AT AT0179889A patent/AT393870B/de not_active IP Right Cessation
- 1989-07-26 FR FR898910052A patent/FR2634817B1/fr not_active Expired - Lifetime
- 1989-07-27 CN CN89106123A patent/CN1039870A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
NO893044D0 (no) | 1989-07-26 |
NO178837B (no) | 1996-03-04 |
NO178837C (no) | 1996-06-12 |
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 |
CH680813A5 (fi) | 1992-11-13 |
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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