Mining equipment, mainly for extraction of heavy beds
AssigneesKozponti Banyaszati Fejlesztesi Intezet, Varpalotai Szenbanyak
InventorsMatvas Martinko, Andras Elekes, Kalman Simon, Jozsef Bohnert, Janos Nemeth, Karoly Bole, Zoltan Ilyes
Life of this patent
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Abstract
A mine excavator especially for heavy coal beds comprises a base on which the power loader and conveyor are provided and on which the roof support or shield is pivotally mounted. According to the invention, a back member connected to the roof plate and spaced above the base has a downwardly and forwardly swingable door which deposits caved material onto the conveyor at a forward portion of the main base.
Claims6
A mining apparatus especially for the excavation of a heavy bed at least in part by the caving of a portion of the roof thereof, said apparatus comprising:
- a main base displaceable along a mining gallery in the direction of a mining face;
- a conveyor mounted on said main base and disposed at least in part at a forward portion thereof for receiving mineral matter excavated from said face;
- a roof plate overhanging said forward portion and adapted to support the roof of said gallery immediately behind the face during excavation thereof;
- a rear base mounted on a rear portion of said main base and extending upwardly therefrom;
- a back member pivotally connected to said rear base for tilting movement relative thereto, said back member being connected to said roof plate and overhanging said main base, thereby shielding a portion of said main base from material falling from the roof of said gallery, said back member being provided with a door tiltable downwardly and forwardly from said back member to form a chute directing cave material from said roof onto said conveyor at said forward portion;
- and
- means mounted between said main base and door for pivotally displacing said door relative to the remainder of said back member.
Dependencies are inferred from the claim text.