Method and grinding cup for grinding buttons of a rock drilling

Details Method and grinding cup for grinding buttons of a rock drilling Method and grinding cup for grinding buttons of a rock drilling

1994-06-22

1997-06-10

Watson, Robert C.

Abrading

Accessory

Cooling

B24B 5502

Patent

active

056370377

ABSTRACT:
The present invention relates to a method for supplying cooling medium to a grinding cup for grinding buttons of a rock drilling bit. The invention also relates to a grinding cup to carry out the method. A shank of the grinding cup is rotatably mounted in a grinding machine. In prior art grinding cups, the cooling medium is supplied via an axial bore extending through the entire grinding cup. These prior arrangements require the cooling medium to be guided through the grinding machine. The method according to the present invention supplies cooling medium to the portion of the grinding cup that is located axially between a recess of a wear part and the free end of the shank of the grinding cup.

REFERENCES:
patent: 2427085 (1947-09-01), Allison
patent: 2455597 (1948-12-01), Metzger et al.
patent: 2946244 (1960-07-01), Maynard
patent: 3016662 (1962-01-01), Ellis
patent: 3229427 (1966-01-01), Goodhew
patent: 3609931 (1971-10-01), Voorhies
patent: 4102084 (1978-07-01), Bloomquist
patent: 5070654 (1991-12-01), Manqvist et al.

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