Solar rotating device with anti-shaking structure

A solar rotating device with anti-shaking structure installed on an upper end of a pole and rotating a solar panel array, the solar rotating device with anti-shaking structure comprising:

• a first tubular body connected to the solar panel array;
• a second tubular body coupled to a lower part of the first tubular body and fixed to the upper end of the pole;
• a gear unit including at least two planetary gear sets and transmitting a reduced rotational force to the first tubular body;
• and
• a drive motor fixed to an inside of the second tubular body to provide the rotational force to the gear unit;
• wherein the gear unit comprises,
• a first planetary gear set including a first sun gear that receives the rotational force generated by the drive motor, a plurality of first PL gears arranged at predetermined intervals-around the first sun gear to be engaged to the first sun gear, and a first ring gear disposed and engaged outside of the plurality of first PL gears;
• and
• a second planetary gear set disposed at a next stage of the first planetary gear set to receive the rotational force, and including a second sun gear, a plurality of second PL gears disposed and engaged at predetermined intervals around the second sun gear, and a second ring gear engaged outside of the plurality of second PL gears and outputting a reduced rotational force to the first tubular body;
• wherein inclined teeth are formed on peripheral surfaces of all of the second PL gear and the second ring gear to have tapered structures,
• wherein the second sun gear has a cross section with a narrow upper part and a wide lower part, the second PL gears have a cross section with a wide upper part and a narrow lower part, an inner diameter of an upper part of the second ring gear is wider than an inner diameter of a lower part of the second ring gear to correspond to an inclined surface of the second PL gears,
• wherein the plurality of second PL gears move slightly upward by the rotational force, so that a predetermined clearance is secured on the gear contact surfaces during rotation, and when the rotation ends, the tapered structure allows the gear contact surfaces to closely engaged with each other to prevent backlash.