Mould sand box for casting planet carrier of wind power gear box

The invention discloses a mold sand box for wind power gear box planet carrier casting, and relates to the field of wind power gear box planet carrier casting, the mold sand box comprises a main body, transverse grooves are formed in the positions, close to the upper end and the lower end, of the outer side wall of the main body, reinforcing mechanisms are arranged in the transverse grooves, and a pressing plate is arranged between the inner side walls of the main body and located at the top position; a storage mechanism is arranged at the bottom end of the main body, a sand outlet groove is formed in the bottom end of the interior of the main body, the reinforcing mechanism comprises a reinforcing plate, a first fastening plate and a second fastening plate, grooves are formed in the positions, located at the two ends, of the side wall of the reinforcing plate, nuts are arranged in the grooves, and two sets of screws are arranged on the side, close to the reinforcing plate, of the second fastening plate. Acco