| 摘要 |
A device for fixation of blades of turbine wheel of axial turbo-machine has a disc, working blades installed in fir-tree slots of the disc with its tail elements, sealing ring installed in the disc with support by its outer radial collar to rim part of the disc and to tail elements of working blades and connected by inner radial collar to radial collar of the disc directed to long axis. At that the collars of sealing ring and the disc are joined by interrelated, with respective depressions, cylindrical bodies and surrounded by U-like ring with diagonal cut and slot combined with it, interconnected with the lock placed between the disc and U-like split ring. Outer radial collar of the sealing ring is placed in radial-axial holders of tail elements of the working blades. At turned to disc side surface of the inner radial ring of the sealing ring a lug is provided, this is placed in conjugated slot of radial collar of the disc and slot of U-like split ring. At that the lug and cylindrical surfaces of U-like split ring are surrounded by lock as part of ring with C-like cross-section. |
