Adjustable roller support for a rotary drum
AssigneeF. L. Smidth & Co.
InventorPaul T. Hjaeresen
Life of this patent
Estimating the term…
Abstract
A rotary kiln having a live ring is supported by a pair of rollers on shafts. The ends of each shaft are supported by bearings carried at the ends of a weigh beam having a rocking bearing so that the rollers can tilt to follow changes in the slope of the kiln. To allow the rollers to follow any axial movement of the live ring, upon thermal expansion or contraction of the kiln, the rocking bearing is slidable on a partly cylindrical segment.
Claims16
A roller support for supporting a rotary drum on a base support, the rotary drum having a live ring positioned around the rotary drum, comprising at least one roller in supporting engagement with the live ring, weigh beam means, means for mounting the at least one roller on the weigh beam means, rocking bearing means positioned between the weigh beam means and the base support, said rocking bearing means being configured and dimensioned so as to permit rocking movement of said weigh beam means and also longitudinal movement of the roller support generally along the direction of the longitudinal axis of the rotary drum, and means for driving the roller support in accordance with the axial displacement of the live ring.
A roller support for supporting a rotary drum on a base support, the rotary drum having a live ring positioned around the rotary drum, comprising at least two rollers in supporting engagement with the live ring, weigh beam means, means for mounting the rollers on the weigh beam means, rocking bearing means positioned between the weigh beam means and the base support, said rocking bearing means being configured and dimensioned so as to permit rocking movement of said weigh beam means and also longitudinal movement of the roller support generally along the direction of the longitudinal axis of the rotary drum, and means for driving the roller support in accordance with the axial displacement of the live ring.
An adjustable roller support for supporting a rotary drum, such as a rotary kiln on a base support, the support comprising two rollers on which the drum is, in use, supported via a live ring, each roller having a shaft symmetrically supported by two bearings, one at each side of the roller, and mounted one at each end of a weigh beam which is centrally supported by a centrally substantially circularly partly cylindrical rocking bearing, characterized in that the rocking bearing is configured and dimensioned so as to permit rocking movement of said weigh beam and also longitudinal movement of the roller support generally along the direction of the longitudinal axis of the rotary drum, said rocking bearing resting in sliding engagement on the inner side of a bearing shell having the shape of an annular cylinder segment, the outer side of which rests on a horizontal base suppport so that the bearing shell rocks with the rocking bearing on the base support, and driving means which are arranged to be actuated by the live ring, for causing the rocking bearing to slide over the bearing shell and thus follow any axial displacement of the live ring.
A rotary kiln having a rotary drum and a live ring positioned therearound, the rotary drum being supported on a base support by an adjustable roller support comprising at least two rollers in supporting engagement with the live ring, weigh beam means, means for mounting the rollers on the weigh beam means, rocking bearing means positioned between the weigh beam means and the base support, said rocking bearing means being configured and dimensioned so as to permit rocking movement of said weigh beam means also longitudinal movement of the roller support generally along the direction of the longitudinal axis of the rotary drum, and means for driving the roller support in accordance with the axial displacement of the live ring.
Dependencies are inferred from the claim text.