Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1998-03-13
2000-03-07
Bagnell, David
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
299 372, E21C 2506
Patent
active
060330317
ABSTRACT:
A milling machine is disclosed, which machine includes a frame, a drive mechanism for advancing the machine across a surface to be milled, and a milling assembly mounted on the frame of the machine for cutting a width of material from the surface in the path of the machine. The milling assembly includes a generally cylindrical milling drum having a plurality of cutting teeth, which drum is mounted for rotation about its axis. The milling assembly also includes a vibratory assembly which is mounted so as to impart vibration to the milling drum. The vibratory assembly includes an elongate shaft, a drive mechanism for rotating the shaft, and an eccentric weight that is mounted on the shaft. The eccentric weight has a non-symmetrical distribution of mass about the shaft so that vibration will be created upon rotation thereof. Also provided is a vibration isolator for isolating the vibratory assembly so as to limit the transmission of vibration created thereby to the frame of the machine.
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Astec Industries Inc.
Bagnell David
Kreck John
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