Continuous mining machine having contour cutters

Details Continuous mining machine having contour cutters Continuous mining machine having contour cutters

1981-08-26

1984-03-13

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Rotary cutter head with advance direction coincident or...

299 86, E21C 2724

Patent

active

044363451

ABSTRACT:
A boring type continuous mining machine having a plurality of boring heads each of which is adapted to cut a substantially rectangular profile bore in the mine face. Each boring head includes a primary cutter head and at least one contour cutter rotatable with the primary cutter and also about an axis spaced from and parallel to the rotational axis of the primary cutter. Each contour cutter carries eccentric cutter teeth which cut selective profile areas radially outwardly and intersecting the bore cut by the associated primary cutter head. The boring heads are supported on the mining machine frame in a manner allowing independent drive of the boring heads and isolating thrust loads from the boring head drive trains.

REFERENCES:
patent: 556985 (1896-03-01), Hurd
patent: 3108788 (1963-10-01), Allimann
patent: 3331636 (1967-07-01), Karlovsky et al.
patent: 3523711 (1970-08-01), McCleery
patent: 3640573 (1972-02-01), Safer
patent: 4303277 (1981-12-01), Roepke et al.

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