F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/217
F16H 55/12 (2006.01)
Patent
CA 1186529
COMPOSITE RING GEAR SYSTEM ABSTRACT OF THE DISCLOSURE The composite ring gear structure, for driving heavily loaded drums in rotation about a horizontal axis thereby to tumble the material loading the drum, is formed by means of a plurality of gear support segments adapted to be connected in driving relation about the periphery of the drum and to be coupled together and extend 360° around the circumference of the drum to provide a gear support. A plurality of gear segments are mounted on the outer periphery of the gear support to form a continuous ring gear extending completely about the gear support. The gear segments have a Brinell hardness of at least 250 and the gear support segments have a maximum Brinell hardness of 250 while always maintaining a minimum difference in Brinell hardness between the gear segments and the gear support of at least 50 Brinell hardness units so that the support segments are significantly more ductile than the gear segments thereby to dampen stress and impede transmission of stress between the drum and gear segments.
406050
Dominion Engineering Works Limited
Eckersley Raymond A.
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