Bevel gear with three layers of center plates

A center plate part of the helical gear comprises an inner ring body, a bearing body, a first center plate, a second center plate and a third center plate, the first center plate, the second center plate and the third center plate are sequentially arranged from top to bottom in the axial direction, the inner edges of the first center plate, the second center plate and the third center plate are connected with the inner ring body, the outer edge of the first center plate is connected with the bearing part, and the outer edge of the second center plate is connected with the bearing part. The outer edge of the third center plate is connected with the outer ring part, the second center plate obliquely extends relative to the rotating axis, and the outer edge of the second center plate is connected with the surface, facing the first center plate, of the third center plate; the helical gear with the three layers of center plates is light in weight, the structure meets the stress and deformation requirements, and li