Driving bevel gear sealing structure assembly of rear drive axle

The invention discloses a rear drive axle driving bevel gear sealing structure assembly, which consists of a main cone bearing seat, an oil seal, a dustproof cover, a flange, a driving bevel gear and a main cone bearing, and is characterized in that the oil seal is provided with a main lip, an auxiliary lip, a sandwich lip, a long dustproof lip and a shoulder dustproof lip; compared with a traditional structure, the two large dust sealing gates including the shoulder dustproof lip and the long dustproof lip are arranged, powerful dustproof support is provided for the auxiliary lip, and the invasion force is obviously weakened when dust or muddy water reaches the position of the auxiliary lip; due to the arrangement of a right-handed gear oil return line of the main lip, a gear oil back suction function is added to the position, and the gear oil leakage tendency is reduced; the air permeability can be greatly improved due to the structure that three grooves are formed between the three ribs of the auxiliary li