| 摘要 |
<p>An excited frame, vibratory conveying apparatus (10) is disclosed. One problem is that prior conveyors are subject to rocking motion and are unable to operate efficiently over a rather large range of loading. These problems are solved with the apparatus (10) having an elongated conveying member (30) mounted by beam springs (56) (57) on an excited frame (14). The excited frame (14) has a balanced vibratory drive means (70) for vibrating the excited frame (14) along a line of force (76) that passes through the center of mass of the apparatus and preferably through the center of masses (95) of conveying member (90) and the excited frame means (93). The ratio of the weight of the conveying member to the weight of the excited frame means should be between 1.5 and 3.5 and preferably between 2.5 and 3.5. Such an arrangement provides for minimum transmission of vibration both horizontal and vertical into the stationary supporting structure and minimizes rocking motion and enables the apparatus to operate efficiently over a rather large range of loading. </p> |
