| 摘要 |
PURPOSE: A solar tracking system is provided to improve the energy efficiency of operating a rotary device as an upper support frame is easily rotated from a lower support frame. CONSTITUTION: A solar tracking system comprises upper and lower support frames and a rotary device. The rotary device comprises an upper fixed cylinder(41), a lower fixed cylinder(44), a third bearing fixing member(49), and a first bearing(43). The upper fixed cylinder is coupled to a rotary shaft(70) rotated by a driving device. The upper fixed cylinder is coupled to the upper support frame, and the lower fixed cylinder is coupled to the lower support frame. The lower fixed cylinder applies supporting force and rotary force to the lower support frame through second and third bearings. The third bearing fixing member prevents the third bearing from becoming separated from the lower fixed cylinder. The first bearing is placed between the upper and lower fixed cylinders, and provides the supporting force for the upper fixed cylinder. The upper fixed cylinder is rotated on the lower fixed cylinder by the first bearing. |
