Debarking shaft for a debarking machine
AssigneeAndritz Inc.
InventorsJouni Havumaki, Pekka Kokko, Bruce Kirkpatrick
Life of this patent
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Abstract
The invention relates to a debarking shaft (3) for a debarking machine (1). The debarking shaft (3) has its teeth (4) designed as a number of annular tooth rims (20), each of said tooth rims comprising two or more releasably connected elements (21, 22), having the outer periphery provided with the teeth (4) and said elements being adapted to be fitted around a body member (25) of the debarking shaft (3) by way of press clamping.
Claims21
A debarking shaft for a debarking machine, said debarking machine comprising a number of rotatable debarking shafts extending parallel to an advancing direction of the logs and provided with a number of teeth extending beyond a circumferential surface of the shaft and adapted to strip bark off the logs transversely to a length of the logs and at the same to convey the logs transversely relative to said shafts, and said shafts, together with the teeth thereof, forming at least a part of a support surface, upon which the logs travel through the debarking machine, characterized in that said teeth are carried by a number of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements having an outer periphery provided with the teeth and said elements being clamped around a body member of the debarking shaft.
A debarking machine for removing bark from logs fed lengthways therethrough, said debarking machine comprising:
- a plurality of rotatable debarking shafts, each debarking shaft comprising a shaft body;
- a plurality of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements having an outer periphery configured as debarking teeth;
- and
- clamping means for clamping said annular tooth rims to said shaft body.
Dependencies are inferred from the claim text.