Spindle assembly for double-intermediate-shaft transmission

Provided is a spindle assembly for a double-intermediate-shaft transmission. The technical scheme of the spindle assembly is that axial positioning of a gear on a spindle is achieved through eight spindle adjusting gaskets, radial positioning of the gear on the spindle is achieved through mutual mesh between the spindle gear and a countershaft gear, and the spindle assembly is simple in structure, strong in bearing capacity, short in axial length and low in noise. For the double-intermediate-shaft transmission, gears at all gear positions of the spindle float on the spindle in the radial direction, and axes of the spindle and a countershaft are located in the same plane, so that radial force generated by meshing of the gears offsets mutually, namely the spindle only transmits torque and resultant force of the spindle stressed by the radial force is zero. The spindle assembly is simple in positioning structure, strong in bearing capacity and high in durability, and prolongs service life of the double-intermediate-shaft transmission under the premise of not increasing cost.