SE8700609D0 - PROCEDURE AND DEVICE FOR GRINDING MOUNTAIN DRILLS - Google Patents

PROCEDURE AND DEVICE FOR GRINDING MOUNTAIN DRILLS

Info

Publication number
SE8700609D0
SE8700609D0 SE8700609A SE8700609A SE8700609D0 SE 8700609 D0 SE8700609 D0 SE 8700609D0 SE 8700609 A SE8700609 A SE 8700609A SE 8700609 A SE8700609 A SE 8700609A SE 8700609 D0 SE8700609 D0 SE 8700609D0
Authority
SE
Sweden
Prior art keywords
cassette
grinding plate
crowns
drilling
gravity
Prior art date
Application number
SE8700609A
Other languages
Swedish (sv)
Other versions
SE455845B (en
Inventor
A Bergqvist
P Noren
Original Assignee
Sandvik Ab
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 Sandvik Ab filed Critical Sandvik Ab
Priority to SE8700609A priority Critical patent/SE455845B/en
Publication of SE8700609D0 publication Critical patent/SE8700609D0/en
Publication of SE455845B publication Critical patent/SE455845B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/33—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of drills for stone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The stationary grinding plate (11) with a circular periphery and specific axial length is made to rotate, and the drilling crowns are pushed past it in a direction crossways to its radial plane. In this manner, the chisel cutter one side is in contact with the grinding plate during its passage. The centre of gravity of the drilling crown moves along a curve with varying curvature radius as it passes the grinding plate. A cassette (16) is provided in which several rock drilling crowns can be fitted releasably with the chisel cutters turned outwards. A mechanism permits the cassette and the grinding plate to be adjusted relatively to one another, and further components (17-19) rotate the cassette (16) in a plane through the centres of gravity of the crowns contained in it. A drive (20-25) causes the cassette to execute an eccentric rotary movement.
SE8700609A 1987-02-16 1987-02-16 Machine for sharpening rock drilling crowns SE455845B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8700609A SE455845B (en) 1987-02-16 1987-02-16 Machine for sharpening rock drilling crowns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8700609A SE455845B (en) 1987-02-16 1987-02-16 Machine for sharpening rock drilling crowns

Publications (2)

Publication Number Publication Date
SE8700609D0 true SE8700609D0 (en) 1987-02-16
SE455845B SE455845B (en) 1988-08-15

Family

ID=20367531

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8700609A SE455845B (en) 1987-02-16 1987-02-16 Machine for sharpening rock drilling crowns

Country Status (1)

Country Link
SE (1) SE455845B (en)

Also Published As

Publication number Publication date
SE455845B (en) 1988-08-15

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