| 摘要 |
Vibratory machinery comprising a base (60) on which a vibratory part (61) is mounted through a resilient mounting means (63, 65), a vibrator (10) mounted on the vibratory part (61) to cause vibration thereof, the vibrator (10) comprising a first shaft (14) rotatable in one direction about a first rotational axis and carrying a first mass (17) for rotation about said first axis, a second shaft (19) driven from the first shaft (14) and rotatable about a second rotational axis parallel to the first rotational axis, in a second direction opposite to the first direction, the second shaft (19) carrying a second mass (21) for rotation about the second axis, the first shaft (14), or an extension (25) of the first shaft (14), comprising an output shaft of a motive unit (42) secured to or integral with the vibrator (10). |
