SE0100090L - Protected lubricant container with pressure control for a rock drill bit with sealed bearings - Google Patents

Protected lubricant container with pressure control for a rock drill bit with sealed bearings

Info

Publication number
SE0100090L
SE0100090L SE0100090A SE0100090A SE0100090L SE 0100090 L SE0100090 L SE 0100090L SE 0100090 A SE0100090 A SE 0100090A SE 0100090 A SE0100090 A SE 0100090A SE 0100090 L SE0100090 L SE 0100090L
Authority
SE
Sweden
Prior art keywords
reservoir
bit
drill bit
pressure control
rock drill
Prior art date
Application number
SE0100090A
Other languages
Swedish (sv)
Other versions
SE0100090D0 (en
Inventor
Jr Robert H Slaughter
Peter T Cariveau
Kirk A Norris
Roger Didericksen
William M Conn
Original Assignee
Smith International
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
Priority claimed from US09/487,947 external-priority patent/US6206110B1/en
Application filed by Smith International filed Critical Smith International
Publication of SE0100090D0 publication Critical patent/SE0100090D0/en
Publication of SE0100090L publication Critical patent/SE0100090L/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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details

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

A rotary cone rock bit, comprises a bit body including a plurality of legs extending therefrom, each of the legs having an outer surface that includes a leading surface and a trailing surface, a roller cone rotatably supported on each of the legs, a bearing system between each cone and the leg on which it is supported, and a lubricant reservoir in flui d communication with the bearing system. The reservoir can be provided with a wear resistant plug , if desired. In the present bit, the reservoir can be pressured-balanced with fluid in the bit plenum or the borehole annulus, or maintained at some desired differential with respect to either o f these. Alternatively, the reservoir can be formed inside the bit body, preferably by means of a canister, which can be provided with venting means as desired.
SE0100090A 2000-01-18 2001-01-12 Protected lubricant container with pressure control for a rock drill bit with sealed bearings SE0100090L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/487,947 US6206110B1 (en) 1996-09-09 2000-01-18 Protected lubricant reservoir with pressure control for sealed bearing earth boring drill bit

Publications (2)

Publication Number Publication Date
SE0100090D0 SE0100090D0 (en) 2001-01-12
SE0100090L true SE0100090L (en) 2001-07-19

Family

ID=23937764

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0100090A SE0100090L (en) 2000-01-18 2001-01-12 Protected lubricant container with pressure control for a rock drill bit with sealed bearings

Country Status (4)

Country Link
AU (1) AU774291B2 (en)
CA (1) CA2330987C (en)
SE (1) SE0100090L (en)
ZA (1) ZA200100323B (en)

Also Published As

Publication number Publication date
CA2330987A1 (en) 2001-07-18
CA2330987C (en) 2007-01-02
SE0100090D0 (en) 2001-01-12
AU774291B2 (en) 2004-06-24
ZA200100323B (en) 2001-07-26
AU1496001A (en) 2001-07-19

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Legal Events

Date Code Title Description
NAV Patent application has lapsed