A DEVICE FOR LOADING BLASTED COAL FROM THE WORKING FACE IN CONVENTIONAL LONGWALL MINING

摘要

A device for loading blasted coal from the working face in conventional longwall mining, which comprises a pair of working implements(17), such as loading buckets, each of the said segment consists in combination a Bull gear (2) mounted on a powered shaft (21) on which a flat face cam - follower (3, 4) and a pinion (5) are also mounted, the said Bull gear (2) being provided with a coaxial bevel gear (1) and crank (12) so as to provide adjustable forward and backward stroke through a slider link (9) in a slot in a pivoted (11) rocker arm/slotted lever (10), non-pivoted end of the said rocker arm/slotted lever (10) being connected through a link (13) enabling transmission of the forward and backward movement through a ram (14) in a casing (18), a L-shaped link (16) and a guided link (15) to a working implement, such as the loading bucket (17), the ram (14) in the casing (18) being mounted perpendicularly with the flat face follower (4) enabling vertical reciprocating movement, the said ram (14) in the said casing (18) being supported with a rack and pinion (19) arrangement at the non-working end, the said shaft (21) being powered through the said shaft mounted pinion (5) being coupled with a spur gear (6) of a gearbox (7) connected to a prime mover, such as a motor (8).