SE8402972L - Rock drilling equipment - Google Patents

Rock drilling equipment

Info

Publication number
SE8402972L
SE8402972L SE8402972A SE8402972A SE8402972L SE 8402972 L SE8402972 L SE 8402972L SE 8402972 A SE8402972 A SE 8402972A SE 8402972 A SE8402972 A SE 8402972A SE 8402972 L SE8402972 L SE 8402972L
Authority
SE
Sweden
Prior art keywords
hood
diaphragms
drilling equipment
rock drilling
stem
Prior art date
Application number
SE8402972A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8402972D0 (en
SE443020B (en
Inventor
S H G Schorling
Original Assignee
Atlas Copco 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 Atlas Copco Ab filed Critical Atlas Copco Ab
Priority to SE8402972A priority Critical patent/SE443020B/en
Publication of SE8402972D0 publication Critical patent/SE8402972D0/en
Priority to EP85850182A priority patent/EP0169180A1/en
Priority to FI852090A priority patent/FI852090L/en
Priority to AU43212/85A priority patent/AU4321285A/en
Publication of SE8402972L publication Critical patent/SE8402972L/en
Publication of SE443020B publication Critical patent/SE443020B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust

Abstract

A collector hood (25) is mounted on the feed beam (11) for a rock drill (15). The drill stem (20) extends through two annular diaphragms (31, 32) which form a rear wall of the hood (25). A pressure fluid is supplied between the two diaphragms (31, 32) and since the inner one of the diaphragms (31) is less stiff than the outer one (32), it bends inwardly so that the pressure fluid flows into the hood (25) through a clearance (42) around the drill stem whereas the outer diaphragm (32) maintains its sealing contact with the drills stem.
SE8402972A 1984-06-01 1984-06-01 BORRKAX CUTTER COVER FITTED ON THE FEEDBAR FOR A DRILL SE443020B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8402972A SE443020B (en) 1984-06-01 1984-06-01 BORRKAX CUTTER COVER FITTED ON THE FEEDBAR FOR A DRILL
EP85850182A EP0169180A1 (en) 1984-06-01 1985-05-23 Dust collector hood for a rock drill
FI852090A FI852090L (en) 1984-06-01 1985-05-24 BERGBORRNINGSANORDNING.
AU43212/85A AU4321285A (en) 1984-06-01 1985-05-31 Rock drilling apparatus with collector hood having a seal formed by pressure fluid between two diaphragms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8402972A SE443020B (en) 1984-06-01 1984-06-01 BORRKAX CUTTER COVER FITTED ON THE FEEDBAR FOR A DRILL

Publications (3)

Publication Number Publication Date
SE8402972D0 SE8402972D0 (en) 1984-06-01
SE8402972L true SE8402972L (en) 1985-12-02
SE443020B SE443020B (en) 1986-02-10

Family

ID=20356110

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8402972A SE443020B (en) 1984-06-01 1984-06-01 BORRKAX CUTTER COVER FITTED ON THE FEEDBAR FOR A DRILL

Country Status (4)

Country Link
EP (1) EP0169180A1 (en)
AU (1) AU4321285A (en)
FI (1) FI852090L (en)
SE (1) SE443020B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747969B (en) * 2011-04-22 2015-07-29 阿特拉斯科普柯(南京)建筑矿山设备有限公司 A kind of dust guard and there is the trepan of described dust guard

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT367163B (en) * 1980-10-15 1982-06-11 Ver Edelstahlwerke Ag COMPRESSED AIR HAMMER

Also Published As

Publication number Publication date
AU4321285A (en) 1985-12-05
SE8402972D0 (en) 1984-06-01
EP0169180A1 (en) 1986-01-22
SE443020B (en) 1986-02-10
FI852090A0 (en) 1985-05-24
FI852090L (en) 1985-12-02

Similar Documents

Publication Publication Date Title
EA199700342A1 (en) DRILLING HOLE FITTING
DE3876845D1 (en) PIPE PACKER.
DE69002268T2 (en) COOLING UNIT WITH FLUID-ACTUATED SEAL.
CA2333516A1 (en) Arrangement for the removal of cuttings and gas arising from drilling operations
MX9602412A (en) Rotatable cutting bit assembly.
ES8702569A1 (en) Crossover seal assembly
CA2041000A1 (en) Transmission sleeve for a down hole hammer
ES270016U (en) Sound attenuating rock drill shank
SE8402972L (en) Rock drilling equipment
ATE66056T1 (en) HOSE CONNECTION FOR HIGH PRESSURE FLUID.
DE69018807T2 (en) Annular seal.
BR0002724A (en) Pipe drilling connection
DE3567712D1 (en) Sealing ring of the composite type
NO873143D0 (en) Swivelsub.
ATE99769T1 (en) TUNNEL BORING MACHINE.
DE3272049D1 (en) Support for a closure assembly
JPS6480696A (en) Stacking type earth drill
ES8307125A1 (en) Seal for a tubular mill
GB1532733A (en) Stabilizer for drill strings
GB1446228A (en) Stabilizers for drill strings
ES274452U (en) Pipe connector.
JPS5359992A (en) Cutting tool
JPS6239189Y2 (en)
SE8204724D0 (en) WORKING MEDIUM FOR BL A MHD GENERATORS
SE9000843D0 (en) THREAD FRICTION LOCKING DEVICE

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8402972-7

Effective date: 19880318

Format of ref document f/p: F