Title:
ROTARY PEENING DEVICE FOR INNER WALL OF CONDUIT
Document Type and Number:
Japanese Patent JPS61265272
Kind Code:
A
Abstract:
A rotopeening apparatus utilizing a flexible spindle for rotopeening the inside wall of tubes of limited access is disclosed herein. The spindle is formed from a flexible, rotatable housing and includes a mandrel having eighteen peening flappers connected thereto along its axis of rotation. The mandrel is rotatably mounted within the housing in an off-center orientation relative to the longitudinal axis of the spindle in order that the peening flapper may rotate and orbit within the tube when the mandrel and the housing are rotated. The apparatus includes a frame plate for detachably mounting the flexible spindle within the open end of the tube to be rotopeened. The spindle is mounted in cantilever off the side of the frame plate to maximize its manipulability in areas of limited access. Additionally, the drive motors of the apparatus are remotely coupled to the peening spindle by means of flexible shafts in order to maximize portability. The apparatus is particularly useful for rotopeening heat exchange tubes mounted in the peripheral regions of the tubesheets of nuclear steam generators.
Inventors:
FUIRITSUPU JIYOSEFU HOOKINZU
Application Number:
JP10327086A
Publication Date:
November 25, 1986
Filing Date:
May 07, 1986
Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CORP
International Classes:
B24B39/02; B24C3/16; B24C1/10; (IPC1-7): B24C1/10; B24C3/16
Attorney, Agent or Firm:
Michiteru Soga