Helical gear with double-layer spokes

The invention discloses a bevel gear with double layers of spokes. A spoke plate part of the bevel gear comprises an inner ring, a lining plate, an outer ring, a plurality of first spokes and a plurality of second spokes. One end of each first spoke is connected with the inner ring, and the other end of each first spoke is connected with the lower surface of the lining plate; the second spokes and the first spokes are equal in number and are in one-to-one correspondence; one end of the second spoke is connected with the inner ring and the other end is connected with the outer ring; the extending directions of the first spokes and the second spokes are inclined relative to the radial direction of the helical gear, and the inclined directions are consistent with the helical tooth rotating direction of the helical tooth part; the first spokes and the corresponding second spokes are arranged in the extending direction of the rotating axis, and the second spokes are farther away from the oblique tooth part than th