AT296917B - Pneumatic hammer drill - Google Patents

Pneumatic hammer drill

Info

Publication number
AT296917B
AT296917B AT619270A AT619270A AT296917B AT 296917 B AT296917 B AT 296917B AT 619270 A AT619270 A AT 619270A AT 619270 A AT619270 A AT 619270A AT 296917 B AT296917 B AT 296917B
Authority
AT
Austria
Prior art keywords
hammer drill
pneumatic hammer
pneumatic
drill
hammer
Prior art date
Application number
AT619270A
Other languages
German (de)
Original Assignee
Demag Drucklufttech
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 Demag Drucklufttech filed Critical Demag Drucklufttech
Application granted granted Critical
Publication of AT296917B publication Critical patent/AT296917B/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • B25D9/265—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof with arrangements for automatic stopping when the tool is lifted from the working face or suffers excessive bore resistance
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/10—Arrangements for automatic stopping when the tool is lifted from the working face

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Automation & Control Theory (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
AT619270A 1969-10-07 1970-07-08 Pneumatic hammer drill AT296917B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691950508 DE1950508C3 (en) 1969-10-07 1969-10-07 Compressed air-operated deep-hole drills

Publications (1)

Publication Number Publication Date
AT296917B true AT296917B (en) 1972-03-10

Family

ID=5747538

Family Applications (1)

Application Number Title Priority Date Filing Date
AT619270A AT296917B (en) 1969-10-07 1970-07-08 Pneumatic hammer drill

Country Status (6)

Country Link
AT (1) AT296917B (en)
BE (1) BE753225A (en)
CH (1) CH524756A (en)
CS (1) CS150508B2 (en)
DE (1) DE1950508C3 (en)
FR (1) FR2140700A5 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789993A (en) * 1971-10-19 1973-02-01 Boehler & Co Ag Geb FLUID INLET CONTROL FOR PERCUSSION FLEURET
DE2924392C2 (en) * 1979-06-16 1982-09-23 Brückner Grundbau GmbH, 4300 Essen Drilling device for overlay drilling
DE2924393C2 (en) * 1979-06-16 1983-06-23 Brückner Grundbau GmbH, 4300 Essen Drilling device for overlay drilling
EP0081897B1 (en) * 1981-12-10 1986-04-09 WEAVER & HURT LIMITED Percussive drills
DE4000691A1 (en) * 1990-01-12 1991-07-18 Fritz Zimmermann Masch U Appar Eccentric deep hammer drill - consists of asymmetrical casing for eccentric drill activated by piston
AU2002235745A1 (en) 2000-12-02 2002-06-11 Tracto-Technik Gmbh Pneumatic rock-boring device and method for horizontal drilling using compressed air and drilling medium
CN107386957B (en) * 2017-08-29 2023-05-05 吉林大学 Valve type air cushion-free high-performance pneumatic impactor
CN114669781B (en) * 2022-04-21 2024-01-30 深圳市速航科技发展有限公司 Pneumatic vibration device with rotatable piston shaft

Also Published As

Publication number Publication date
CH524756A (en) 1972-06-30
DE1950508B2 (en) 1974-06-06
BE753225A (en) 1970-12-16
CS150508B2 (en) 1973-09-04
DE1950508A1 (en) 1971-04-15
FR2140700A5 (en) 1973-01-19
DE1950508C3 (en) 1975-01-09

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee