ZA962922B - A hydraulic arrangement for turning the actuator of a rock drilling machine - Google Patents

A hydraulic arrangement for turning the actuator of a rock drilling machine

Info

Publication number
ZA962922B
ZA962922B ZA962922A ZA962922A ZA962922B ZA 962922 B ZA962922 B ZA 962922B ZA 962922 A ZA962922 A ZA 962922A ZA 962922 A ZA962922 A ZA 962922A ZA 962922 B ZA962922 B ZA 962922B
Authority
ZA
South Africa
Prior art keywords
actuator
turning
drilling machine
rock drilling
hydraulic arrangement
Prior art date
Application number
ZA962922A
Inventor
Markku Launiemi
Mikko Huttunen
Original Assignee
Tamrock Oy
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 Tamrock Oy filed Critical Tamrock Oy
Publication of ZA962922B publication Critical patent/ZA962922B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The arrangement comprises a pressure medium cylinder (2) provided with two cylinder spaces (2a, 2b) and two pistons (3a, 3b), and a control valve (12). The control valve (12) can be placed in at least three control positions but in only one at a time. In each control position, the pressure fluid is arranged to affect both cylinder spaces (2a, 2b) of the cylinder (2) such that in the control position concerned, the pistons (3a, 3b) always settle in a certain predefined position.
ZA962922A 1995-04-21 1996-04-12 A hydraulic arrangement for turning the actuator of a rock drilling machine ZA962922B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI951913A FI105944B (en) 1995-04-21 1995-04-21 Hydraulic assembly for rotating rock actuator actuator

Publications (1)

Publication Number Publication Date
ZA962922B true ZA962922B (en) 1996-10-17

Family

ID=8543285

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA962922A ZA962922B (en) 1995-04-21 1996-04-12 A hydraulic arrangement for turning the actuator of a rock drilling machine

Country Status (10)

Country Link
EP (1) EP0824634B1 (en)
JP (1) JP3449725B2 (en)
AT (1) ATE231213T1 (en)
AU (1) AU704357B2 (en)
DE (1) DE69625808D1 (en)
FI (1) FI105944B (en)
NO (1) NO974784D0 (en)
PL (1) PL322844A1 (en)
WO (1) WO1996033337A1 (en)
ZA (1) ZA962922B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109458201B (en) * 2018-11-23 2020-10-23 晋中学院 Anti-blocking hydraulic drilling anchor machine with adjustable pressure and flow

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU501926B2 (en) * 1977-09-06 1979-07-05 Australian Iron & Steel Pty. Limited Hydraulic circuit for rock drill
US5246313A (en) * 1991-06-28 1993-09-21 Secoma S.A. Apparatus for forming long and short holes and setting rock bolts

Also Published As

Publication number Publication date
NO974784L (en) 1997-10-16
NO974784D0 (en) 1997-10-16
EP0824634B1 (en) 2003-01-15
DE69625808D1 (en) 2003-02-20
WO1996033337A1 (en) 1996-10-24
AU5400496A (en) 1996-11-07
FI951913A (en) 1996-10-22
PL322844A1 (en) 1998-02-16
ATE231213T1 (en) 2003-02-15
JPH11503800A (en) 1999-03-30
FI105944B (en) 2000-10-31
JP3449725B2 (en) 2003-09-22
FI951913A0 (en) 1995-04-21
EP0824634A1 (en) 1998-02-25
AU704357B2 (en) 1999-04-22

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