Cam turntable, sun-tracking device equipped with same and control method for the device

摘要

Provided are a cam turntable (2), a sun-tracking device equipped with the cam turntable (2) and a control method for the device. The sun-tracking device comprises a support mechanism for mounting a photovoltaic assembly (1), and an azimuth driving device, which is a cam turntable (2), fixed on the support mechanism for adjusting the azimuth thereof. The sun-tracking device adjusts the azimuth of the support mechanism for mounting the photovoltaic assembly (1) by utilising the cam turntable (2) as the azimuth driving device, so that harmful incoming impact loads on the sun-tracking device as a whole are transformed into friction forces which are then transferred and eliminated, therefore it is advantageous in avoiding damage to subsequent driving devices due to the excessively large impact loads, especially in protecting the precision of a control worm gear (2-10)from being affected, which in turn extends the service life of the sun-tracking device as a whole. The device has high safety, large load capacity, and the function of automatic gap adjustment.