| 摘要 |
<p>The inventions relates to a solar tracker device (10, 100, 200) for making a mirror follow the position of the sun. It comprises a fixed part (12, 112) integral with the ground; a part (14, 114) movable with respect to the fixed part on which the mirror is mountable; a shaft (20, 120) having a first threaded section (22, 122) and a second threaded section (24, 124), the second section having a thread-verse contrary to the first; two counter-threaded elements (32, 34, 42, 44, 132, 134, 142, 144) engaged respectively with the first and second threaded section and integral with the fixed and movable part, respectively; and means (50, 52, 150, 152) for moving the shaft axially with respect to the two elements, so that the axial movement of the shaft induces a screwing of the two elements on the respective threaded sections and thus a rotation of the movable part with respect to the fixed one.</p> |
