Oblique crossing angle gearbox

The utility model provides a skew angle gearbox which comprises a box body, an input shaft and an output shaft, and the box body comprises a base, an output shaft box body and an input shaft box body which are fixedly connected in sequence from bottom to top; the input shaft is vertically supported on the input shaft box body through an input bearing, the output shaft is obliquely supported on the output shaft box body through an output bearing, and the output shaft is located below the input shaft and is in transmission connection with the input shaft through a pair of bevel gear pairs. The lower end of the output shaft is used as an output shaft extension end; and at least one rib plate is connected between the bottom surface of the output shaft box body corresponding to the output shaft and the base. According to the skew angle gear box, in the practical application process, at least one rib plate is arranged on the bottom face of the output shaft box body, and the rib plate is located below the position c