Underground mining machine
AssigneeDBT GmbH
InventorSiamak Onsori
Life of this patent
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Abstract
The underground mining machine (10) according to the invention in known manner comprises a machine body (13) movable along a working face (11) and with at least one cutting and rolling unit (14) connected to the machine body by an extension arm (15) and drivable via a gear arrangement (17) mounted in the extension arm by a drive (16) disposed on the machine body. In order to make the drive system of the mining machine simpler, requiring less maintenance, and less subject to wear, according to the invention the gear arrangement comprises a compensating drive shaft (18) extending through the extension and coupled or adapted to be coupled by a first angular gear stage (19) to the drive on the machine body side and by a second angular gear stage (20) to the cutting and rolling unit on the cutting and rolling side.
Claims20
An underground mining machine comprising a machine body movable along a working face and at least one cutting and rolling unit connected to the machine body via an extension arm of fixed length and drivable by a gear arrangement in the extension arm by a drive disposed on the machine body, in which the gear arrangement comprises an articulated compensating drive shaft extending through the extension arm and coupled or adapted to be coupled via a first angular gear stage to the drive on the machine body side and via a second angular gear stage to the cutting and rolling unit on the cutting and rolling side.
An underground mining machine comprising a machine body movable along a working face and at least one cutting and rolling unit connected to the machine body via an extension arm and drivable by a gear arrangement in the extension arm and by a drive disposed on the machine body, in which the gear arrangement comprises a compensating drive shaft extending though the extension arm and coupled or adapted to be coupled via a first angular gear stage to the drive on the machine body side and via a second angular gear stage to the cutting and rolling unit on the cutting and rolling side, the compensating drive shaft being divided substantially into two portions, wherein a first portion at the cutter rolling end is movable between two bearings in the extension arm and is pivotably connected via a compensating coupling to the second portion at the machine-body end and the other end of the portion is pivotably connected via a second compensating coupling to the first angular gear stage mounted on a bearing block, at least one of the portions being variable in length.
Dependencies are inferred from the claim text.