A toothed blade root used in a large high speed compressor. The utility model relates to a toothed blade root, in particular to a tooth shaped blade root used for a large high speed compressor. The utility model in order to solve the existing compressor serrated blade safety margin is small, to ensure the safe operation of more than 20MW high speed compressor unit problem. The utility model is composed of a pair of teeth, one of a pair of lower teeth, teeth, the first working face, second face and third face, the upper load surface height Ha 14.28mm, tooth load surface height Hb 14.28mm, under the load tooth surface height Hc 14.19mm, the first working face the width of D is 68.6mm, second working face width of E is 68.6mm, the width of third working face F 68.6mm, a pair of upper leaf root pressure, a pair of teeth and a pair of lower tooth angle are respectively 30 degrees, the top blade root width Bg height 102mm, Hg root is 66.58mm convex the height of H0 root was 5.61mm. The utility model is used for the blade root of a high speed fan unit with a capacity of more than 20MW.
【技术实现步骤摘要】
【技术保护点】
1.一种大型高转速压气机使用的齿形叶根,它由一对上齿(1)、一对中齿(2)、一对下齿(3)、第一工作面(4)、第二工作面(5)和第三工作面(6)组成,一对上齿(1)、一对中齿(2)和一对下齿(3)由上至下依次沿叶根(7)的中心线对称设置在叶根(7)的左右两侧,第一工作面(4)位于叶根(7)的顶部和上齿(1)之间,第二工作面(5)位于上齿(1)和中齿(2)之间,第三工作面(6)位于中齿(2)和下齿(3)之间,其特征在于:所述上齿(1)的载荷面高度Ha为14.28mm,所述中齿(2)的载荷面高度Hb为14.28mm,所述下齿(3)的载荷面高度Hc为14.19mm,所述第一工作面 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:吕智强,张宏涛,鞠凤鸣,冯永志,胡平金,张春梅,赵俊明,梁培培,
申请(专利权)人:哈尔滨汽轮机厂有限责任公司,
类型:实用新型
国别省市:93
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