Built-in damping and leakproof agitator gear box

The utility model relates to a built-in damping and leakproof agitator gear box which is mainly characterized in that the bottom in a box body is provided with an oil retaining and bearing seat which is integrated with the box body by continuous casting, wherein the oil retaining and bearing seat is in an integral raised structure, the top surface of the oil retaining and bearing seat is provided with a through hole for bearing a power output shaft, the outer circumferential surface of the oil retaining and bearing seat is provided with a bearing which forms a negative clearance fit, the oil retaining and bearing seat is connected with a drive gear in the box body by the bearing, the power output shaft is positioned in the through hole of the oil retaining and bearing seat in a T-type built-in structure mode, and the joint between the top surface of the oil retaining and bearing seat and the shaft is connected with a spacing ring and a sealing part by a fastener. The utility model not only can effectively sol