Invention Grant
US08342236B2 Blast hole drill bit carousel and a blast hole drill including a blast hole drill bit carousel 失效
喷孔钻头转盘和爆破孔钻头,包括一个爆破孔钻头转盘

Blast hole drill bit carousel and a blast hole drill including a blast hole drill bit carousel
Abstract:
A drill bit carousel for use on a blast hole drill includes a base structure that movably supports a plurality of drill receptacles. The drill bit carousel is movable between a storage position and at least one exchange position. In the exchange position, one of the drill receptacles is aligned with a centerline of a drill pipe string. In the storage position, the drill bit carousel is clear of the centerline of the drill pipe string.
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