Roof Mining Drill Bit

a drill bit and roof technology, applied in drill bits, earthwork drilling and mining, construction, etc., can solve the problems of reducing or eliminating the efficacy of cutting elements, and reducing or eliminating the stress within the bit. , to achieve the effect of stabilizing the bit as it rotates

a drill bit and roof technology, applied in drill bits, earthwork drilling and mining, construction, etc., can solve the problems of reducing or eliminating the efficacy of cutting elements, and reducing or eliminating the stress within the bit. , to achieve the effect of stabilizing the bit as it rotates

US20080035389A1Inactive Publication Date: 2008-02-14NOVATEK IP
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  • Roof Mining Drill Bit
  • Roof Mining Drill Bit
  • Roof Mining Drill Bit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035]FIG. 1 is an orthogonal diagram of a roof mining machine 100 attached to a roof mining drill bit 101. An arm 102 may be intermediate the drill bit 101 and a platform 103. The arm 102 may be attached to a hydraulic system 104 that may allow the arm 102 to move. The arm 102 may also be able to telescope to bring the drill bit 101 in and out of contact with the mine roof 105. A rotation device 106 may be attached to the arm 102 and be in communication with the drill bit 101. The drill bit 101 may rotate when the rotation device 106 is activated. The drill bit 101 may comprise multiple cutting elements 107 adapted to engage the roof of the mine 105 which may facilitate drilling.

[0036]FIG. 2 is a perspective diagram of a roof mining drill bit 101. The drill bit 101 may comprise a bit body 201 intermediate a working surface 202 and a shank 203. The working surface 202 may comprise multiple outer cutting elements 157 that comprise diamond working ends 204. Each diamond working end 20...

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Abstract

In one aspect of the invention a rotary mine roof drilling apparatus has an arm attached to and intermediate a drill bit and a platform. The apparatus also has a thrusting mechanism adapted to push the drill bit into a mine roof. The drill bit has a bit body intermediate a shank and a working surface. The working surface has a cutting element with a carbide substrate bonded to a diamond working end with a pointed geometry; and the diamond working end has a 0.050-0.200 inch apex radius.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is a continuation-in-part of U.S. patent application Ser. No. 11 / 7766,975 and was filed on Jun. 22, 2007. This application is also a continuation-in-part of U.S. patent application Ser. No. 11 / 774,227 which was filed on Jul. 6, 2007. U.S. patent application Ser. No. 11 / 774,227 is a continuation-in-part of U.S. patent application Ser. No. 11 / 773,271 which was filed on Jul. 3, 2007. U.S. patent application Ser. No. 11 / 773,271 is a continuation-in-part of U.S. patent application Ser. No. 11 / 766,903 filed on Jun. 22, 2007. U.S. patent application Ser. No. 11 / 766,903 is a continuation of U.S. patent application Ser. No. 11 / 766,865 filed on Jun. 22, 2007. U.S. patent application Ser. No. 11 / 766,865 is a continuation-in-part of U.S. patent application Ser. No. 11 / 742,304 which was filed on Apr. 30, 2007. U.S. patent application Ser. No. 11 / 742,304 is a continuation of U.S. patent application Ser. No. 11 / 742,261 which was filed on...

Claims

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Application Information

Patent Timeline
14 Feb 2008
Publication
US20080035389A1
IPC
E21B10/46
CPC
E21B10/42; E21B10/55; E21B10/5735; E21B10/5673; E21B10/56
Inventors
HALL; CROCKETT, RONALD