发明授权
- 专利标题: Fixing method for the blading of a fluid-flow machine and fixing arrangement
- 专利标题(中): 流体流动机的叶片固定方法和固定装置
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申请号: US10958423申请日: 2004-10-06
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公开(公告)号: US07114927B2公开(公告)日: 2006-10-03
- 发明人: Rene Bachofner , Wolfgang Kappis
- 申请人: Rene Bachofner , Wolfgang Kappis
- 申请人地址: CH Baden
- 专利权人: ALSTOM Technology Ltd.
- 当前专利权人: ALSTOM Technology Ltd.
- 当前专利权人地址: CH Baden
- 代理机构: Cermak & Kenealy, LLP
- 代理商 Adam J. Cermak
- 优先权: DE10346239 20031006
- 主分类号: F01D5/32
- IPC分类号: F01D5/32
摘要:
A fixing method for blading of a fluid-flow machine, in which first of all the turbine blades (31, 32) are inserted into the fastening slot (1) of a rotor (2) or stator until only the intermediate fitting gap is left, into which two insert elements designed as end piece halves (41, 42) are then inserted. After that, a wedge (6) is inserted into the gap between the end piece halves (41, 42), and the end piece halves (41, 42) together with the wedge (6) are welded by a joining weld (10). With the method according to the invention and the arrangement according to the invention, axial forces which can warp the rotor (2) and thus cause increased rotor vibrations are advantageously avoided. The invention also relates to a fixing arrangement according to the invention.
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