| 摘要 |
<p>Rotating probe flexible shaft assembly is used as carrier of eddy current rotating probe for tubing examination. Basically this invention is applied in assembly of eddy current rotating probe for examination of tubes in steam generators mounted in WWER type of nuclear power plant (Ø13 mm inside diameter of tube). This assembly provides good flexibility, while maintaining feature to be pushed-pulled and rotated in the same time. Rotating probe flexible shaft assembly is determined by flexible shaft with diameter Ø3.2 mm. Two coaxial cables with diameter Ø0.5 mm are wounded around flexible shaft. Coaxial cables are fixed to the shaft every 50 mm by heated shrink tubes (raw Ø6x4 mm). Nylon hose Ø8/Ø6 is mounted over flexible shaft and cables fixed with heated shrink tubes while putting grease on shrink tubes. Both sides of flexible shaft are ended with bearing assemblies.</p> |
