Patent ID: 6334583
Filing Date: 2002-01-01
Classification: B02C,Y10S

Abstract:
A planetary high-energy ball mill for producing nanometer-scale powders, comprising:(a) a vertical main shaft that is revolvable and glide-able up or down; (b) a turntable fixed on a top of said main shaft; (c) at least two un-magnatized cup-like rollers, a mill pot fixed with said cup-like rollers, said cup-like rollers operable to rotate about their own swing-able pivotal shafts while rotating in unison about said main shaft, said cup-like rollers self-rotated due to friction counterforce received from a stationary ring, said cup-like rollers disposed around said turntable with substantially equal distance between one another, wherein said cup-like rollers are rotatably supported by said swing-able pivotal shafts; (d) said stationary ring disposed coaxially with said main shaft; and (e) an inside ring of a ball bearing fixed at a bottom of said main shaft, wherein an external ring of said ball bearing is clamped by a clamp, said clamp driven by a transmission screw for driving said main shaft up or down.