Differential planetary gear shaft and differential planetary gear shaft limiting tool

The utility model discloses a differential mechanism planetary gear shaft and a differential mechanism planetary gear shaft limiting tool, which comprise a shaft body, two inclined surfaces are arranged at the end part of the shaft body, and a transition surface is arranged between the two inclined surfaces. In the mounting and limiting process, the multiple shaft bodies can be used for limiting at the same time, the multiple shaft bodies are distributed in the circumferential direction, the slopes of every two adjacent shaft bodies abut against each other in a matched mode, circumferential rotation of the shaft bodies is prevented through cooperation between the slopes, rotation of the planetary gear shaft can be avoided without adding extra limiting components, and the service life of the planetary gear shaft is prolonged. According to the planetary gear shaft, the limiting effect can be achieved without assistance of additional parts, the assembling space is saved, the shaft body is simple in structure and