Tool positioning assembly

Details Tool positioning assembly Tool positioning assembly

1991-09-06

1993-01-12

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

165 112, 165 76, 901 1, G21C 1900

Patent

active

051788209

ABSTRACT:
A tool positioning assembly for use inside a steam generator. A loading tool assembly removably attachable to a support base is used to insert the support base into the steam generator through a manway opening. The support base is removably attached to the steam generator at the manway. A retractable foot assembly pivotally attached to the support base stabilizes the support base inside the steam generator. A track assembly, removably attachable to the support base after removal of the loading tool assembly, receives an arm. A driven cogwheel on the waist of the manipulator engages a rack on the track assembly and support base for selectively driving and positioning the arm thereon. A tool coupling mounted on the arm is adapted to receive remotely controlled tools. The four degree-of-freedom movement of the arm provides access to all tubes in the tubesheet and allows mounting of tools outside the steam generator.

REFERENCES:
patent: 4037730 (1977-07-01), Fetzer et al.
patent: 4168782 (1979-09-01), Sturges, Jr.
patent: 4561816 (1985-12-01), Dingess
patent: 4595419 (1986-06-01), Patenaude
patent: 4696612 (1987-09-01), Germond et al.
patent: 4984627 (1991-01-01), LeBourgeois

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