IES87041B2 - A drill bit assembly for fluid-operated percussion drill tools - Google Patents

A drill bit assembly for fluid-operated percussion drill tools

Info

Publication number
IES87041B2
IES87041B2 IES20180218A IES20180218A IES87041B2 IE S87041 B2 IES87041 B2 IE S87041B2 IE S20180218 A IES20180218 A IE S20180218A IE S20180218 A IES20180218 A IE S20180218A IE S87041 B2 IES87041 B2 IE S87041B2
Authority
IE
Ireland
Prior art keywords
chuck
bit
fluid
drill
shank
Prior art date
Application number
IES20180218A
Inventor
Purcell Joseph
Original Assignee
Mincon Int Ltd
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 Mincon Int Ltd filed Critical Mincon Int Ltd
Priority to IES20180218A priority Critical patent/IES87041B2/en
Priority to PCT/EP2019/068887 priority patent/WO2020016137A1/en
Publication of IES20180218A2 publication Critical patent/IES20180218A2/en
Publication of IES87041B2 publication Critical patent/IES87041B2/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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits

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)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Abstract

The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending shank, a first plurality of axially extending splines on the shank slidably engageable with a plurality of complementary splines formed internally of a drive chuck whereby rotational drive from the chuck may be transmitted to the shank and engagement means on the chuck adapted for connecting the chuck to a drive means of the fluid-operated percussion drill tool. The assembly further comprises a retaining sleeve mounted externally on the chuck, wherein the retaining sleeve is moveable between a drilling position, in which the bit and the chuck are retained in a first relative orientation in which the bit is retained in the chuck, and a bit removal position, in which the bit is retatable relative to the chuck to a second relative orientation in which the bit is removable from the chuck. <Figure 1>
IES20180218A 2018-07-19 2018-07-19 A drill bit assembly for fluid-operated percussion drill tools IES87041B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IES20180218A IES87041B2 (en) 2018-07-19 2018-07-19 A drill bit assembly for fluid-operated percussion drill tools
PCT/EP2019/068887 WO2020016137A1 (en) 2018-07-19 2019-07-12 A drill bit assembly for fluid-operated percussion drill tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IES20180218A IES87041B2 (en) 2018-07-19 2018-07-19 A drill bit assembly for fluid-operated percussion drill tools

Publications (2)

Publication Number Publication Date
IES20180218A2 IES20180218A2 (en) 2019-08-21
IES87041B2 true IES87041B2 (en) 2019-08-21

Family

ID=67314758

Family Applications (1)

Application Number Title Priority Date Filing Date
IES20180218A IES87041B2 (en) 2018-07-19 2018-07-19 A drill bit assembly for fluid-operated percussion drill tools

Country Status (2)

Country Link
IE (1) IES87041B2 (en)
WO (1) WO2020016137A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021105109A1 (en) 2019-11-28 2021-06-03 Mincon International Limited A drill bit assembly for fluid-operated percussion drill tools

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4667703A1 (en) * 2024-06-18 2025-12-24 Sandvik Mining and Construction Oy Spline alignment for dth hammer assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2385869A (en) * 2002-03-01 2003-09-03 Halco Drilling Internat Ltd Retaining broken drill in rock drilling apparatus
US7117939B1 (en) * 2002-11-20 2006-10-10 Gregory Dee Hawley Percussion hammer bit retainer apparatus
US8312944B2 (en) * 2009-01-28 2012-11-20 Smith International, Inc. Percussion hammer bit with a driver sub including a guide sleeve portion
US8100200B2 (en) * 2009-04-16 2012-01-24 Atlas Copco Secoroc Llc Chuck assembly for a down-hole drill
CN204920799U (en) * 2015-09-16 2015-12-30 中国石油集团川庆钻探工程有限公司 Self-sealing anti-drop reverse circulation air hammer bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021105109A1 (en) 2019-11-28 2021-06-03 Mincon International Limited A drill bit assembly for fluid-operated percussion drill tools

Also Published As

Publication number Publication date
IES20180218A2 (en) 2019-08-21
WO2020016137A1 (en) 2020-01-23

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