Novel excavator bucket shaft

A novel excavator bucket shaft structurally comprises a shaft body, a positioning ring is arranged at one end of the shaft body, a limiting sliding groove is formed in the center of the other end of the shaft body, the novel excavator bucket shaft further comprises a sealing piece, the sealing piece is connected with the other end of the shaft body and seals the limiting sliding groove, and a limiting block is arranged in the limiting sliding groove in a sliding mode. The bolt can penetrate through the limiting hole of the limiting block at the same time, the bolt is matched with the positioning ring, the excavator bucket is clamped and limited, before fixing, the bolt is rotated through a tool, the bolt drives the limiting block in threaded connection to axially move, the limiting hole in the limiting block makes contact with the bolt in the moving process, and the bolt is limited; and the bolt is effectively prevented from moving in the fixed assembly process. 一种新型挖掘机斗轴，其结构包括轴体，轴体一端设有定位环，另一端中心设有限位滑槽，还包括封闭片，