| 摘要 |
PURPOSE:To make the axial movement of a rotating shaft possible while shaft sealing ability is maintained by insertedly arranging a cylindrical pipe between a shaft seal part and a casing, and providing sealing members to seal a part between the cylindrical pipe and the casing, the cylindrical pipe and the shaft seal part. CONSTITUTION:A shaft seal part 1 is fitted on a sleeve 12. A cylindrical pipe 2 is insertedly arranged between a casing 9 and an irrotational ring 11, and fitted in the casing 9 movably in an axial direction, and a part between the pipe 2 and the casing 9 is sealed by the first sealing member 3. The irrotational ring 11 is fitted in the pipe 2 through the second sealing member 4. Thus a rotating shaft can move axially as shaft sealing ability is maintained. |
