Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1990-06-19
1992-03-03
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
37 97, 37190, 299 85, E02F 324, E21C 4704
Patent
active
050926594
ABSTRACT:
A continuous track-mounted, self-propelled continuously operating open-cast mining machine having a drum-shaped mining device with cutting tools arranged around the circumference of the drum. The cutting drum is equipped with cutting teeth which can cut in both directions and the mined material is guided into the interior of the cutting drum, with the cutter bars being arranged in a substantially axial pattern on the circumference of the drum. The teeth holders are arranged on the cutter bars and carry teeth and the teeth holders with the teeth are pivotable about an axis in such a way that the teeth pointing in the directin of rotation of the drum pivot automatically into the cutting position as they engage in the material to be extracted, while the teeth pointing in the opposite direction are simultaneously pivoted out of the clearance angle zone of the teeth doing the actual cutting. The mined material is transported by the cutter bars and by flights via a curved liner and a feed chute onto a discharge belt arranged axially inside the cutting drum. The cutter bars are joined together with the rotating ring members by conical rings bearing radially arranged ribs; and the discharge belt carries the mined material to the end of the drum where the material is transferred to further conveyor belts located outside the cutting drum.
REFERENCES:
patent: 3612246 (1971-10-01), Elze et al.
patent: 4009531 (1977-03-01), Metrier
patent: 4120106 (1978-10-01), Smith et al.
Gunther Linder, "Das Schaufelrad und seine vielsetige Anwendumg", Deutsche Hebe-und Fordertechnick pp. 3-16, 7-1957.
Goergen et at., "Das Frasmachine 3000 SM/3800 SM als neues tragebaugerut", Braunkohle 36, pp. 92-95, 4-1984.
BTU Magazine "The Satterwhite Wheel" pp. 14, 19-21, 10-1986.
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