Cooling device for casting shell of engineering machinery differential mechanism

The utility model belongs to the technical field of shell cooling, particularly relates to a cooling device for casting a shell of a differential mechanism of engineering machinery, and provides the following scheme aiming at the problems that the cooling mode in the prior art is natural cooling, the cooling time is long and the working efficiency is reduced: the cooling device comprises a working plate, and four supporting legs are arranged at the bottom of the working plate; the top of the working plate is rotatably provided with a rotating column, the top of the rotating column is provided with a placing plate, the top of the placing plate is provided with a fixing mechanism, the bottom of the working plate is provided with a rotating mechanism, the rotating mechanism is connected with the rotating column, the top of the working plate is provided with a cooling cylinder, and the left side of the cooling cylinder is provided with a plurality of air inlet holes; a fan shaft is rotationally installed in the c