seen for the regulation of kastvinkeln at term or a vibrating feeders

摘要

A device such as a sieve or feeder (1) is provided with two parallel shafts having respective out-of-balance weight means (5) comprising weights (10) located in casings, each shaft being driven by its own motor (3), preferably of asynchronous type. The out of balance weight means (5) are of different dimensions for each shaft and the centre of gravity of the device is so positioned that the ratio of the distances between the centre of gravity and the respective axes of rotation of the out of balance weight means, is inversely proportional to the products of the weights of the respective out of balance means and their mean distance to the respective axis of rotation so that an elliptical stroke can be obtained. The direction of stroke can be altered by changing the ratio of the values of power supplied to the two motors. IMAGE