Drilling device for machining tubes in tube sheets in a radioactive environment
AssigneeWestinghouse Electric Germany GmbH
InventorFritz Ziegelmeyer
Life of this patent
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Abstract
The present disclosure relates to a drilling device for machining tubes in tube sheets of heat exchangers in a radioactive environment. A retaining plate is clampable in the tubes with at least two retaining fingers on a first side and a first drive, which drives a tool shaft, is arranged on a second side. A tool chuck on a first end side of the tool shaft is connected detachably to the latter, wherein a forward feed of the tool shaft is brought about by a feed device. In addition, the tool chuck is unlockable from the tool shaft by way of an unlocking instrument and the unlocking instrument is controllable by a remote-control device.
Claims14
A drilling device for machining tubes in tube sheets of heat exchangers in a radioactive environment, comprising:
- a retaining plate having a first side and a second side and at least two retaining fingers operatively connected to the first side that are configured to be clamped in the tubes;
- an unlocking instrument;
- a tool driveshaft having a first end and a second end opposite the first end;
- a first drive arranged on the second side of the retaining plate and configured to drive the tool driveshaft;
- a feed device arranged on the second side of the retaining plate and configured to provide a forward feed to the tool driveshaft;
- and
- a tool chuck located at the first end of the tool driveshaft and detachably connected thereto, wherein the tool chuck is unlockable from the tool driveshaft by the unlocking instrument, and wherein the unlocking instrument is controllable by a remote-controlled device.
Dependencies are inferred from the claim text.