| 摘要 |
The invention relates to a structural drive arrangement for rotatable structures, designed to solve the problem associated with the orientation, in any spatial direction, of pre-determined elements (3) of certain devices or uses. The structural arrangement essentially comprises: a spatial structure with moving parts (2a, 2b) that rotate with respect to a fixed vertical pivot (1a, 1b, 1c) by means of a main swivel joint (4a) and a lower multiple supporting device (4b) positioned therebetween; and secondary moving parts (2b) that are inclined or that rotate with respect to the main structure (2a) by means of mechanical elements (6) of various types, which are positioned therebetween. The drive arrangement essentially comprises the aforementioned mechanical elements (6) and drive elements (5a) secured to the main structure (2a), which, by means of force- and movement-transmission elements (5b) linked to the pivot (1a, 1b, 1c), cause the main structure to rotate about the pivot. The two arrangements provide a solution to the above-mentioned technical problem, which affords advantages in terms of structural optimization, rationality and mechanical simplification and, consequently, in terms of operating reliability, ease of maintenance and durability.
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