Thrust cage roller circle
First Claim
1. A roller circle, comprising:
- upper and lower arcuate rails each having a bearing surface that is spaced from and opposes the bearing surface of the other rail;
a plurality of tapered rollers in the space between the rails and in rolling contact with the bearing surfaces, each roller being mounted on a shaft; and
an inner cage connecting the ends of the shafts of adjacent rollers at the smaller ends of the rollers,said inner cage including a portion that overlies a side face of one of said rails and engages said side face and transfers thrust loads from the rollers, through the cage, and to the rail.
3 Assignments
0 Petitions
Accused Products
Abstract
A roller circle for hoisting and excavating equipment has upper and lower spaced annular rails. A plurality of tapered rollers are disposed between the rails in rolling contact with bearing surfaces of the rails. Each of the rollers is mounted on a shaft. Inner and outer cages connect the projecting ends of the shafts and are joined together by through rods. A portion of the inner cage overlies a side face of a rail and a pad is disposed between the inner cage portion and the side of the rail. A second pad is disposed between the outer cage and the larger ends of the rollers. Thrust loads are transferred from the rollers to the outer cage and through the rods to the inner cage and then to the rail.
22 Citations
8 Claims
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1. A roller circle, comprising:
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upper and lower arcuate rails each having a bearing surface that is spaced from and opposes the bearing surface of the other rail; a plurality of tapered rollers in the space between the rails and in rolling contact with the bearing surfaces, each roller being mounted on a shaft; and an inner cage connecting the ends of the shafts of adjacent rollers at the smaller ends of the rollers, said inner cage including a portion that overlies a side face of one of said rails and engages said side face and transfers thrust loads from the rollers, through the cage, and to the rail. - View Dependent Claims (2, 3, 4)
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5. A roller circle, comprising:
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a lower arcuate rail having a bearing surface; an upper arcuate rail having a bearing surface spaced from and opposing the bearing surface of the lower rail; a plurality of tapered rollers arrayed in a circle between the rails and in rolling contact with the bearing surfaces of the two rails, each of said rollers being rotatably mounted on a shaft; an inner cage member connecting the ends of the shafts of adjacent rollers at the smaller ends of the rollers; and a pad disposed against the inner cage member and engaging with a face of one of said rails that is normal to the plane of the axes of the shafts. - View Dependent Claims (6, 7, 8)
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Specification