Coal-cutting machine having horizontally swivellable jib boom an

Details Coal-cutting machine having horizontally swivellable jib boom an Coal-cutting machine having horizontally swivellable jib boom an

1989-11-15

1991-03-12

Britts, Ramon S.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

With material-handling means

198522, 299 73, 299 75, F21C 2568, F21C 3110

Patent

active

049987771

ABSTRACT:
A coal-cutting machine (1) having an all-round swivelling jib boom (6), on which cutting implements (17) are rotatably supported, and a loading platform (3) comprising a loading platform which can swivel about an axis (4) extending transversely to the longitudinal direction of the machine. The loading platform (3) is angularly, rigidly connected to the swing gear (5) for the swivelling of the jib boom (6) in a horizontal direction and is supported on the machine frame (1) so as to swivel, together with the swing gear (5), about the axis (4) extending transversely to the longitudinal direction of the machine. As a result of this construction which a particularly low overall height is made possible while safely preventing a collision between the jib boom (6) and the loading platform (3). A pivot axis (15) for the pivoting of the jib boom (6) in an essentially vertical direction, is preferably arranged between the swing gear (5), which is rigidly connected to the loading platform, and the rotatably supported cutting implements (17).

REFERENCES:
patent: 3307879 (1967-03-01), Bergmann
patent: 3317245 (1967-05-01), Arndt
patent: 3929378 (1975-12-01), Frenyo et al.
patent: 4133582 (1979-01-01), Kogelmann

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