Ring clamp for a cutter ring in a tunnel drilling machine
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United States of America Patent
Stats
-
Aug 30, 1994
Grant Date -
N/A
app pub date -
Oct 21, 1992
filing date -
Apr 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cutter for a tunnel boring machine with cutter ring in two or more ring segments with a dovetail base, clamped to the cutter hub by a segmented clamping ring. The ring segments have a wedge shaped cross section, and are mounted in a groove. The segments are fastened to the hub by bolts. To facilitate loosening of the ring segments, the segments have a curvature different from that of the groove, so that an elastic force will be accumulated in the ring segments when they are mounted and the bolts are tightened. The curvature of the ring segments is either smaller or greater than that of the groove.
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Cited Art Landscape
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