| 摘要 |
<p>First (20) of two rotors (20, 30) has two bearing blocks in which distribution chute (42) is suspended, pivotable around a horizontal axis. Gear transmission (52) on first rotor comprises input and output shafts. Each of two pivoting levers at the level of the two bearing blocks is symmetrically connected to one of two transmission cranks by gear transmission through a link. The unit comprises: (a) a chute (42); (b) a first rotor (20) with a vertical axis of rotation carrying two suspension blocks, the chute being suspended in the two suspension blocks such that it can pivot around a pivoting axis that is more or less horizontal; (c) a second rotor (30) with axis of rotation coaxial with that of the first rotor (20), the second rotor (30) being equipped with an annular gear (58); and (d) a gear transmission (52) carried by the first rotor (20) and comprising an input shaft (54) equipped with a pinion (56) which engages with the annular gear (58) of the second rotor (30), and an output shaft which is parallel to the pivoting axis of the chute (42) and with which is associated a rod-crank system producing pivoting of the chute (42) when the input shaft (54) is driven by the annular gear (58) of the second rotor.</p> |
