SE9304124L - Hydraulic percussion - Google Patents

Hydraulic percussion

Info

Publication number
SE9304124L
SE9304124L SE9304124A SE9304124A SE9304124L SE 9304124 L SE9304124 L SE 9304124L SE 9304124 A SE9304124 A SE 9304124A SE 9304124 A SE9304124 A SE 9304124A SE 9304124 L SE9304124 L SE 9304124L
Authority
SE
Sweden
Prior art keywords
control surface
valve
pressure
control
moved
Prior art date
Application number
SE9304124A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE505171C2 (en
SE9304124D0 (en
Inventor
Per Gustafsson
Original Assignee
G Drill 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 G Drill Ab filed Critical G Drill Ab
Priority to SE9304124A priority Critical patent/SE505171C2/en
Publication of SE9304124D0 publication Critical patent/SE9304124D0/en
Priority to PCT/SE1994/001196 priority patent/WO1995016847A1/en
Priority to EP95919255A priority patent/EP0733153B1/en
Priority to JP51670195A priority patent/JP3393139B2/en
Priority to CA002178813A priority patent/CA2178813C/en
Priority to AU12864/95A priority patent/AU685891B2/en
Priority to KR1019960703109A priority patent/KR100326485B1/en
Priority to DE69423511T priority patent/DE69423511T2/en
Priority to ES95919255T priority patent/ES2146313T3/en
Publication of SE9304124L publication Critical patent/SE9304124L/en
Priority to US08/664,905 priority patent/US5715897A/en
Publication of SE505171C2 publication Critical patent/SE505171C2/en

Links

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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

A hydraulic impact motor in the form of a water-driven in-hole rock drilling machine has a valve spool (40) that has two equally big and opposite directed control surfaces (A1 and A2). The valve has also a third control surface (A3) which is smaller than the other two and which is continuously under pressure. The third control surface (A3) acts in the same direction as the second control surface (A2). When the first control surface (A1) is under pressure but the second control surface (A2) is not, then the valve is moved in one direction, and when the first and second control surfaces (A1 and A2) is under equal pressure (full pressure or no pressure), then the valve is moved in the other direction by the third control surface (A3).
SE9304124A 1993-12-13 1993-12-13 Valve slide in a hydraulic percussion SE505171C2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE9304124A SE505171C2 (en) 1993-12-13 1993-12-13 Valve slide in a hydraulic percussion
ES95919255T ES2146313T3 (en) 1993-12-13 1994-12-13 HYDRAULIC PERCUSSION MOTOR.
CA002178813A CA2178813C (en) 1993-12-13 1994-12-13 A hydraulic impact motor
EP95919255A EP0733153B1 (en) 1993-12-13 1994-12-13 A hydraulic impact motor
JP51670195A JP3393139B2 (en) 1993-12-13 1994-12-13 Hydraulic shock motor
PCT/SE1994/001196 WO1995016847A1 (en) 1993-12-13 1994-12-13 A hydraulic impact motor
AU12864/95A AU685891B2 (en) 1993-12-13 1994-12-13 A hydraulic impact motor
KR1019960703109A KR100326485B1 (en) 1993-12-13 1994-12-13 Hydraulic Shock Motor
DE69423511T DE69423511T2 (en) 1993-12-13 1994-12-13 HYDRAULIC STROKE DRIVE
US08/664,905 US5715897A (en) 1993-12-13 1996-06-12 In-hole rock drilling machine with a hydraulic impact motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9304124A SE505171C2 (en) 1993-12-13 1993-12-13 Valve slide in a hydraulic percussion

Publications (3)

Publication Number Publication Date
SE9304124D0 SE9304124D0 (en) 1993-12-13
SE9304124L true SE9304124L (en) 1995-06-14
SE505171C2 SE505171C2 (en) 1997-07-07

Family

ID=20392072

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9304124A SE505171C2 (en) 1993-12-13 1993-12-13 Valve slide in a hydraulic percussion

Country Status (8)

Country Link
EP (1) EP0733153B1 (en)
JP (1) JP3393139B2 (en)
KR (1) KR100326485B1 (en)
AU (1) AU685891B2 (en)
DE (1) DE69423511T2 (en)
ES (1) ES2146313T3 (en)
SE (1) SE505171C2 (en)
WO (1) WO1995016847A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19625724A1 (en) * 1996-06-27 1998-01-02 Nordmeyer Gmbh & Co Kg Drilling hammer unit using in sinking boreholes or driving piles
SE507651C2 (en) * 1997-07-02 1998-06-29 Uniroc Ab Lowering drill with double driver areas for the stroke and return stroke of the piston
SE0001657L (en) * 2000-05-05 2001-10-01 G Drill Ab The drill bit attachment
NO313467B1 (en) * 2001-01-05 2002-10-07 Bakke Technology As Device for hydraulic percussion tools
DE10352747A1 (en) * 2003-11-12 2005-06-16 Rolf Bartholet Percussion drill for drilling deep bore has cylinder with two sets of control apertures inside outer casing and has pressure air reservoir and striker piston with valve system
KR101352302B1 (en) * 2010-11-22 2014-01-24 주식회사 케이티 Mud hammer for underground boring using high water pressure
CN102168523B (en) * 2011-04-27 2013-03-20 兰桥昌 Main driving and speed-changing system of drilling machine as well as operating mechanism of the drilling machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343565C2 (en) * 1983-12-01 1985-11-14 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Downhole hammer
SE500654C2 (en) * 1987-07-14 1994-08-01 G Drill Ab Hydraulic submersible drill

Also Published As

Publication number Publication date
AU685891B2 (en) 1998-01-29
JPH09506687A (en) 1997-06-30
DE69423511D1 (en) 2000-04-20
EP0733153B1 (en) 2000-03-15
EP0733153A1 (en) 1996-09-25
KR960706600A (en) 1996-12-09
AU1286495A (en) 1995-07-03
KR100326485B1 (en) 2002-06-26
DE69423511T2 (en) 2000-11-02
WO1995016847A1 (en) 1995-06-22
SE505171C2 (en) 1997-07-07
JP3393139B2 (en) 2003-04-07
SE9304124D0 (en) 1993-12-13
ES2146313T3 (en) 2000-08-01

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Legal Events

Date Code Title Description
NUG Patent has lapsed