JP2772275B

PROBLEM TO BE SOLVED: To surely guide a working tool to the narrow part of the interior of a steam generator by utilizing the internal space thereof. SOLUTION: A working device having a lifting mechanism 40 comprises an extensible mechanism 50 multistage extensible arms 51-55 pivotally mounted on th...

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Bibliographische Detailangaben
Hauptverfasser:	NAGURA YASUMI, KAMEI HIROMASA, INUI HIDEKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS HEAT EXCHANGE IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING METHODS OF STEAM GENERATION NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS STEAM BOILERS STEAM GENERATION WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To surely guide a working tool to the narrow part of the interior of a steam generator by utilizing the internal space thereof. SOLUTION: A working device having a lifting mechanism 40 comprises an extensible mechanism 50 multistage extensible arms 51-55 pivotally mounted on the tip of the extensible body of the lifting mechanism 40, a feed mechanism 60 mounted on the tip of the extensible mechanism 50, and an elastic belt-like member 80 arranged movably along the lifting mechanism 40 and the extensible mechanism 50 and having a front end to which a tip tool 81 is attached. The feed mechanism 60 comprises a drive device to drive the elastic belt-like member 80 in a longitudinal direction; a bending mechanism containing a bending guide 61 and a cylinder 63; and a revolving mechanism 65. Further, the feed mechanism 60 has an openable support leg 67 operated in coordination with the extensible mechanism 50.