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发明授权
CN101956574B 旋转体 失效 - 权利终止

旋转体
摘要：
本发明提供一种牢固地固着张紧键、动叶片和特殊动叶片的旋转体。该旋转体(1)具备：转子盘(10)，具有沿外周环状地设置的动叶片嵌合槽(11)和设置于外周并与动叶片嵌合槽(11)连通的动叶片导入孔(12)；动叶片(20)，在所述外周连续设置多个，且具有嵌合于动叶片嵌合槽(11)的叶根(21)和向转子盘(10)的外侧突出的叶片主体(23)；两个特殊动叶片(20A、20B)，各自具有一部分嵌合于动叶片嵌合槽(11)的叶根(21)和向转子盘(10)的外侧突出的叶片主体(23)，彼此相邻并堵塞动叶片导入孔(12)；张紧键(30)，插入动叶片(20)之间，该旋转体(1)的特征在于，张紧键(30)具备周方向的厚度尺寸从径方向内侧的一端朝向径方向外侧的另一端逐渐增大的插入部。
摘要（英）：

A rotating body includes a rotor disk 10 that has a moving blade fitting groove 11 that is annularly provided along the outer circumference and a moving blade lead-in hole 12 that is provided in the outer circumference and is in communication with the moving blade fitting groove 11; a plurality of moving blades 20 that are consecutively provided in the outer circumference and that each have a blade root 21 that is fitted in the moving blade fitting groove 11 and a wing body 23 that projects to the outer side of the rotor disk 10; two special moving blades 20A and 20B that each have a blade root 21 of which a portion is fitted in the moving blade fitting groove 11 and a wing body 23 that projects to the outer side of the rotor disk 10, and that by mutually adjoining block the moving blade lead-in hole 12; and a tensioning key 13 that is inserted between the moving blades 20, in which the tensioning key 13 is provided with an insertion portion whose thickness dimension in the circumferential direction gradually increases from one end on the inner side in the radial direction toward the other end on the outer side in the radial direction.

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