| 摘要 |
<p>A vibratory table (15) for transporting particulate material includes a delivery table (60) which is flat in a delivery direction, an intermediate support (62) and a fixed support (64). The table (60) is mounted on the intermediate support (62) by first mounting means (61) for oscillatory movement of the table (60) relative to the intermediate support (62) only in a first substantially linear direction parallel to the delivery direction. The intermediate support (62) is itself mounted on the fixed support (64) by second mounting means (63) for oscillatory movement of the intermediate support (62) relative to the fixed support (64) only in a second substantially linear direction in a vertical plane and orthogonal to said first direction. The oscillatory movements are applied to the table at a common frequency by vibrating means (65, 66). The relative phase of the oscillatory movements can be changed by control means to reverse the direction of transport of particulate material on the delivery table (60). <IMAGE></p> |
