| 摘要 |
A transmission element (1), particularly for wind turbines, comprising a first shaft (2) and a second shaft (3) which are connected by way of a crossbar (4) provided with a first pair of arms (5) and a second pair of arms (6) that are perpendicular to each other. The second shaft (3) can move by rotation about a respective third axis (3a) and is connected rotatably to the first pair of arms (5) about a respective first axis (5a) that passes through the first pair of arms. The transmission element comprises a supporting element (7) that is associated with a supporting frame (8) and can move by rotation about a working axis (9a) that is normal to a respective working plane (9) that is inclined with respect to the third axis (3a). Furthermore, the supporting element (7) comprises seats (10) for the engagement of the second pair of arms (6) that are able to move by rotation about a respective second axis (6a) that passes through the second pair of arms. The first shaft (2) is integral with the crossbar (4) and is provided with a precession motion about a central axis (11) that is incident to the third axis (3 a) in the origin of the precession motion and performs a progressive rotation that is equal to a straight angle about a respective fourth axis (2a) that passes through the first shaft during the completion of the precession motion. |
