Apparatus for holding a cutting bit

Details Apparatus for holding a cutting bit Apparatus for holding a cutting bit

1993-06-04

1994-04-12

Bagnell, David J.

Mining or in situ disintegration of hard material

Miscellaneous

175413, E21C 3518

Patent

active

053020057

ABSTRACT:
A mining bit holding system is provided which includes a bit holder which attaches to the rotatable drum of a mining machine. The bit holder includes a base portion and a body portion. The body portion has an aperture therethrough, to receive a sleeve. The sleeve has an aperture therethrough for rotatably receiving a cutting bit. The sleeve and bit holder are constructed such that the position of the sleeve may be fixed axially with respect to the body portion by an interference fit in such a manner that it may be easily removed from the body portion.

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