| 摘要 |
Auger apparatus is disclosed adapted to utilize one or more augers each formed of a string of auger sections. The apparatus includes means for hoisting one or a plurality of auger sections simultaneously between a storage rack and a position for placement in an auger string. The hoist means includes bridge rails extending transversely of and above the machine, a trolley that travels on the bridge rails, lifting apparatus including a cable on the trolley and a carriage supported by the lifting apparatus and carrying a plurality of tongs for grasping auger sections. A safety connection is provided between the carriage and the lifting apparatus to prevent inadvertant release of a raised auger section. A collapsible and expandable assembly of multiple pairs of cross links pivotally joined at their midpoints is connected between the trolley and the tong carriage at two sides thereof to guide and stabilize the tong carriage and auger sections as they are moved. The auger apparatus also includes an opening extending transversely of the longitudinal axis of the augers for receiving a cross conveyor which receives extracted coal from the auger sections and moves it laterally to a side of the apparatus. The opening is provided with a bottom plate welded to the frame of the apparatus for supporting the cross conveyor and making the frame stronger and more rigid. The cross conveyor is connected to the bottom plate only at laterally outer portions of the plate.
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