Girth gear
AssigneeHofmann Engineering Pty Ltd
InventorsKarl Hofmann, Leighton White
Life of this patent
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Abstract
A girth gear is provided, formed by a plurality of gear segments which are adapted to be secured together in an end to end arrangement to form the girth gear. Each gear segment includes a rim and a web extending from an underside of the rim. Each gear segment also includes at least one flange at each end of the gear segment for joining each gear segment together when the gear segments are in an end to end arrangement. The at least one flange has a side secured to one of the web or the rim.
Claims8
A girth gear formed by a plurality of gear segments which are adapted to be secured together in an end to end arrangement to form the girth gear, each gear segment comprising:
- a rim, and a web extending from a central region of an underside of the rim;
- and
- at least two flanges at each end of the gear segment for joining each gear segment together when the gear segments are in an end to end arrangement, each of the two flanges being positioned on either side of the web;
- wherein at each end of each gear segment each flange has a first side secured to or formed integrally with the rim, and a second side most adjacent to the web spaced therefrom such that a gap is provided between each flange and the web.
A gear segment for forming a girth gear, the gear segment comprising:
- at least two flanges secured at each end of the gear segment, the at least two flanges are adapted to co-operate with a flange on another gear segment for joining the gear segments together, wherein at each end of each gear segment each flange has a first side fixed to or integrally formed with a rim of the gear segment, and wherein at each end of each gear segment a web is spaced from the at least one flange such that a gap is defined between the web and each flange such that the flange is not fixed to the web, wherein the web extends from a central portion of a concave underside of the rim.
A girth gear formed by a plurality of gear segments which are adapted to be secured together in an end to end arrangement to form the girth gear, each gear segment comprises:
- a rim, and a web extending from a central portion of a concave underside of the rim;
- and
- at least one flange at each end of the gear segment for joining each gear segment together when the gear segments are in an end to end arrangement,
- the at least one flange having a first side extending substantially in an axial direction of the girth gear and a second side, closest to the web and extending substantially in a radial direction of the girth gear, wherein the first side is secured to the rim and the second side is spaced from the web.
Dependencies are inferred from the claim text.