Vibratory milling machine having linear reciprocating motion

Details Vibratory milling machine having linear reciprocating motion Vibratory milling machine having linear reciprocating motion

B - Operations, Transporting

28

D

B28D 1/18 (2006.01) B23C 1/00 (2006.01) B23C 3/00 (2006.01) B23C 9/00 (2006.01)

Patent

CA 2602094

A vibratory milling machine has a vibratory housing confined to substantially linear reciprocating motion relative to a base, causing a tool carried by the housing to impact a mineral formation or other work piece substantially in a primary milling direction. The vibratory motion may be generated by two or more eccentrically- weighted rotors rotated by a common drive mechanism. The rotors may be arranged in pairs with the rotors of each pair rotating in opposite directions about parallel axes so that lateral oscillations cancel and longitudinal vibrations in the milling direction reinforce one another. In one embodiment, a hydrostatic fluid bearing is provided between the outer surface of each rotor and the housing.

La présente invention concerne une machine à fraiser vibrante ayant un boîtier vibrant confiné pour aligner sensiblement le mouvement alternatif linéaire par rapport à une base, entraînant un outil porté par le boîtier à frapper une formation minérale ou autre pièce de travail sensiblement dans une direction de fraisage primaire. Le mouvement vibrant peut être généré par deux ou plusieurs rotors excentriquement pondérés entraînés par un mécanisme d'entraînement commun. Les rotors peuvent être agencés en paires, les rotors de chaque paire tournant dans des directions opposées autour d'axes parallèles de sorte que les oscillations latérales s'annulent et que les vibrations longitudinales dans la direction de fraisage se renforcent mutuellement. Dans un mode de réalisation, un coussinet de fluide hydrostatique est placé entre la surface externe de chaque rotor et le boîtier.

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