| 摘要 |
A mechanical vibrator mounted within the roller of a vibratory compactor for dynamic soil compaction. The vibrator comprises a fixed eccentric weight and a movable eccentric weight mounted on a motor-driven hollow shaft. A reciprocable member arranged within the hollow shaft is connected to a fluid actuated cylinder to be thereby moved linearly relative to the shaft. This linear motion is translated into angular displacement of the movable weight on the hollow shaft, so that the angular position of the movable weight can be adjustably varied with respect to the fixed weight, resulting in the change in the vibratory force developed by the vibrator. |
