Rotor-type liquid fertilizer accurate application quantifying device

The invention discloses a rotor-type liquid fertilizer accurate application quantifying device and belongs to the field of agricultural machinery. The rotor-type liquid fertilizer accurate applicationquantifying device is characterized in that two 'L'-shaped bases are welded at the front and the rear of the lower side of an outer barrel in a back-to-back manner; a liquid inlet and a liquid outletare formed in the front of the outer side of the outer barrel by means of welding; an inner rotary drum is mounted inside the outer barrel via a front rotary drum bearing and a rear rotary drum bearing; a front end cover and a rear end cover are fixed to the outsides of the front end and the rear end of the outer barrel by the aid of screws; a planetary gear device is mounted in the inner rotarydrum; a gear wheel shaft of a periodic fertilizer discharge device is fixedly welded with the front end cover; a piston fertilizer storage device is fixedly connected onto an opening in a side wall ofthe inner rotary drum, a pi