SE9200785D0 - rock drill - Google Patents

rock drill

Info

Publication number
SE9200785D0
SE9200785D0 SE9200785A SE9200785A SE9200785D0 SE 9200785 D0 SE9200785 D0 SE 9200785D0 SE 9200785 A SE9200785 A SE 9200785A SE 9200785 A SE9200785 A SE 9200785A SE 9200785 D0 SE9200785 D0 SE 9200785D0
Authority
SE
Sweden
Prior art keywords
rock drill
chamber
pressure fluid
drilling machine
fluid cylinder
Prior art date
Application number
SE9200785A
Other languages
Swedish (sv)
Other versions
SE9200785L (en
Inventor
B Ekwall
Original Assignee
Atlas Copco Tunnelling And Min
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 Atlas Copco Tunnelling And Min filed Critical Atlas Copco Tunnelling And Min
Priority to SE9200785A priority Critical patent/SE9200785L/en
Publication of SE9200785D0 publication Critical patent/SE9200785D0/en
Publication of SE9200785L publication Critical patent/SE9200785L/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The pressure fluid cylinder (5) has a chamber which is pressurised from the drilling machine housing (1) to produce feed force. The pressure fluid cylinder has a handgrip (10) which contains a valve (9) for venting the chamber. - The adjacent of the drilling machine can be brought back to a level which the operator attains.
SE9200785A 1992-03-16 1992-03-16 Machine for upwardly directed rock drilling - has pressure fluid cylinder fixed on machine housing and parallel to drilling tool SE9200785L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9200785A SE9200785L (en) 1992-03-16 1992-03-16 Machine for upwardly directed rock drilling - has pressure fluid cylinder fixed on machine housing and parallel to drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9200785A SE9200785L (en) 1992-03-16 1992-03-16 Machine for upwardly directed rock drilling - has pressure fluid cylinder fixed on machine housing and parallel to drilling tool

Publications (2)

Publication Number Publication Date
SE9200785D0 true SE9200785D0 (en) 1992-03-16
SE9200785L SE9200785L (en) 1992-12-04

Family

ID=20385616

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9200785A SE9200785L (en) 1992-03-16 1992-03-16 Machine for upwardly directed rock drilling - has pressure fluid cylinder fixed on machine housing and parallel to drilling tool

Country Status (1)

Country Link
SE (1) SE9200785L (en)

Also Published As

Publication number Publication date
SE9200785L (en) 1992-12-04

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9200785-5

Effective date: 19930424