Multiple axial of mining reducer shaft end machinery labyrinth sealing structure

The utility model provides a multiple axial of mining reducer shaft end machinery labyrinth sealing structure, relates to reducer shaft end seal structure technical field, solves the sealed dustproofand unsatisfactory technical problem of leak protection oil effect of mining reducer shaft end, and the solution is: axle contracting draws together inner bearing and outer bearing, and the inner bearing sets up the outer spacer ring of bearing between with, and the outside terminal surface department of outer bearing installs the distance ring, is equipped with the distance ring oil return opening on the distance ring, installation fender oil ring between distance ring and the boss, the axle sleeve includes and interior axle sleeve and outer axle sleeve is equipped with sealing ring no. 1 onthe outer disc of interior axle sleeve, is equipped with sealing ring two, sealing ring no. 1 and sealing ring no. 2 on the outer disc of outer axle sleeve respectively and form the axial seal maze between the relative termina