610mm last-stage moving blade for variable-speed operation and blade group

The utility model belongs to the field of industrial steam turbines, and discloses a 610mm last-stage moving blade for variable-speed operation and a blade group. The blade comprises a blade body and a blade root, the blade root is arranged at the bottom of the blade body, the blade further comprises a lacing wire and a shroud ring, the lacing wire is arranged in the middle of the blade body, the shroud ring is arranged at the top of the blade body, the section area of the blade body in the blade height direction is gradually reduced from the bottom to the top, and the section of the blade body is in a closed curve shape. 本实用新型属于工业汽轮机领域，公开了一种用于变转速运行的610mm末级动叶片及叶片组。叶片包括叶身和叶根，所述叶根设置在叶身底部，还包括拉筋和围带，所述拉筋设置在叶身中部，所述围带设置在叶身顶部，所述叶身叶高方向上的截面面积从底部至顶部逐渐减小，所述叶身的截面形状为封闭曲线。