CA2404156A1 - Grinding tool for buttons of a rock drill bit - Google Patents
Grinding tool for buttons of a rock drill bit Download PDFInfo
- Publication number
- CA2404156A1 CA2404156A1 CA002404156A CA2404156A CA2404156A1 CA 2404156 A1 CA2404156 A1 CA 2404156A1 CA 002404156 A CA002404156 A CA 002404156A CA 2404156 A CA2404156 A CA 2404156A CA 2404156 A1 CA2404156 A1 CA 2404156A1
- Authority
- CA
- Canada
- Prior art keywords
- grinding
- section
- upper body
- cup
- body section
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/005—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor for cutting spherical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The present invention provides a grinding cup (31) having a lower grinding section (32) and an upper body section (33) connected to form a grinding cup having top (34) and bottom surfaces (35). The grinding section (32) is formed from a material capable of grinding the hard materials such as tungsten carbide inserts of button bits etc. A centrally disposed convex recess is formed in the bottom surface (35) having the desired size and profile for the button to be ground.
Drive means (38) are provided on or in the upper body section that cooperate with the output shaft of the grinding machine.
The drive means (38) and the upper body section or grinding section (33) of the grinding cup are adapted to optimize the engagement surfaces and points of contact between the grinding cup (31) and rotor or adapter to reduce negative impact on operational stability and rotor wear, as well as other potential associated wear to the grinding apparatus caused by vibration and/or resonance.
Drive means (38) are provided on or in the upper body section that cooperate with the output shaft of the grinding machine.
The drive means (38) and the upper body section or grinding section (33) of the grinding cup are adapted to optimize the engagement surfaces and points of contact between the grinding cup (31) and rotor or adapter to reduce negative impact on operational stability and rotor wear, as well as other potential associated wear to the grinding apparatus caused by vibration and/or resonance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002404156A CA2404156C (en) | 2000-04-27 | 2001-04-27 | Grinding tool for buttons of a rock drill bit |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2,306,735 | 2000-04-27 | ||
CA002306735A CA2306735C (en) | 2000-04-27 | 2000-04-27 | Grinding cup having optimized drive and/or contact surfaces |
CA002404156A CA2404156C (en) | 2000-04-27 | 2001-04-27 | Grinding tool for buttons of a rock drill bit |
PCT/CA2001/000575 WO2001083164A1 (en) | 2000-04-27 | 2001-04-27 | Grinding tool for buttons of a rock drill bit |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2404156A1 true CA2404156A1 (en) | 2001-11-08 |
CA2404156C CA2404156C (en) | 2008-07-22 |
Family
ID=25681760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002404156A Expired - Lifetime CA2404156C (en) | 2000-04-27 | 2001-04-27 | Grinding tool for buttons of a rock drill bit |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2404156C (en) |
-
2001
- 2001-04-27 CA CA002404156A patent/CA2404156C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2404156C (en) | 2008-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20210427 |