VIBRATOR

摘要

This invention relates to vibratory machines such as grinding machines. A machine 10 has a vibratory unit 13 which is connected to a separate motor 12 by a flexible drive 14. The drive rotates a shaft 23 carrying eccentric weights 25, 26 and the resultant gyratory movement is transmitted directly to a vibratory plate 16 through bearings 24. The amplitude vibration can be altered by adjusting the relative position of the weights (Figs. 3, 4). A chamber 19 for material to be ground is clamped to plate 16 by a toggle arrangement 21.