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    • 1. 发明公开
    • Integral backing ring for stub shaft weld repairs of rotating equipment and related method
    • 内置的支持环上的旋转装置的短轴焊接修复和相应的方法
    • EP1782913A2
    • 2007-05-09
    • EP06255651.9
    • 2006-11-02
    • General Electric Company
    • Grycko, Lawrence MichaelNolan, John FrancisSassatelli, John MatthewBurnett, Mark EdwardCook, Carter StevenParker, David Roy
    • B23P6/00B23K9/035B23K33/00
    • B23P6/005B23K9/0358B23K33/006B23K2201/001B60B35/00B60B2310/228B60B2310/302B60B2310/316B60B2900/541F01D5/005F01D5/063F04D29/053F05D2230/232F05D2230/80F16D1/027
    • A stub shaft section (16) adapted to be welded to a re-used end portion of a rotor shaft (12), the stub shaft section (16) including a hollow cylindrical member having a substantially uniform inner diameter and first chamfered end (18) adapted to form one side of a substantially V-shaped weld groove (22), and an integral backing ring (20) extending axially beyond the chamfered end (18), the backing ring (20) having a circumferential recess (28) in a radially outer surface (30) thereof. A related method of replacing a stub shaft on an end of a rotor shaft comprising: (a) providing a new stub shaft (16) with a first chamfered end (18) and an integral backing ring (20); (b) aligning the first chamfered end (18) with a second chamfered end (14) on the rotor shaft (12), with the integral backing ring (20) overlapping the second chamfered end (14), and with the first and second chamfered ends (18), (14) forming a substantially V-shaped weld groove (22), with the integral backing ring (20) overlapping the second chamfered end (14); (c) filling the V-shaped groove (22) with weld material (32); (d) welding the stub shaft (16) to the rotor shaft (12); and (e) machining the integral backing ring (20) away from the stub shaft (16).
    • 存根轴部(16)angepasst将被焊接到一个转子轴(12),包括具有基本上一致的内径和第一倒角端部的空心圆筒形构件的短轴部(16)的再使用的端部(18 )angepasst以形成基本上V形的焊接槽(22)的一侧上,并在积分后环(20)轴向延伸超出倒角端部(18),其具有周向凹部垫环(20)(28) 径向外表面(30)上。 上更换短轴到转子轴,其包括端部的一个相关方法:(a)提供一个新的短轴(16)与第一倒角的端部(18)和积分后环(20)的; (B)对准第一倒角端(18)与所述转子轴(12)的第二斜切端(14),与所述积分后环(20)重叠第二倒角端(14),以及与第一和第二 倒角末端(18),(14)形成一基本上为V形的焊接槽(22),与所述一体衬垫环(20)的第二倒角端部(14)重叠; (C)填充焊接材料的V形槽(22)(32); (D)焊接短轴(16)到所述转子轴(12); 和(e)加工所述一体衬垫环(20)从所述短轴(16)的距离。