| 摘要 |
PURPOSE: A solar tracker and an operation method using thereof are provided of one rotary shaft to restrain the other rotary shaft mechanically, and to calibrate an annual motion automatically by having a subordinate movement according to a correlation of a diurnal motion and the annual motion of the sun. CONSTITUTION: A solar tracker comprises a right ascension rotary shaft (100), a right ascension rotation drive unit (200), a declination rotary shaft (300), and a declination drive mechanism unit (400). The right ascension rotary shaft is installed in parallel with an axis of a rotation of the earth, and tracks a change of a right ascension according to a diurnal motion of the sun. The right ascension rotation drive unit drives the right ascension rotary shaft. The declination rotary shaft is perpendicular to the right ascension rotary shaft, and travels back and forth in one year intervals in order to track a change of a declination according to an annual motion of the sun. When the right ascension rotation drive unit drives the right ascension rotary shaft, the declination drive mechanism unit delivers a part of a rotatory power to the declination rotary shaft, and travels up and down. The declination drive mechanism unit installs a one-way clutch in one spot of a power transmission path from the right ascension rotation drive unit to the declination rotary shaft in order to deliver by selecting a one-way rotation element of the rotatory power delivered to the declination rotary shaft. |
