An improved groove design for wire rope drums and sheaves

Details An improved groove design for wire rope drums and sheaves An improved groove design for wire rope drums and sheaves

B - Operations, Transporting

66

D

B66D 1/30 (2006.01) B66D 1/36 (2006.01) F16H 55/50 (2006.01)

Patent

CA 2287676

A device adapted to support a wire rope of known nominal diameter in a system where the fleet angle of rope departure from the device is other than perpendicular to the device, the device comprising a cylindrical body, and a groove around the cylindrical body, the groove having a contour adapted to support the wire rope, the groove contour being such that the wire rope is adapted to be supported through a rope support angle somewhere between 100 degrees and 160 degrees, the rope support angle being the included angle from the nominal rope's center to each end of the supporting groove contour on each side of the groove, the improvement comprising the groove contour being parabolic in shape over at least about the upper half of the groove contour. In other words, the groove contour has a radial length from the nominal rope center to the contour greater than at the bottom of the groove over at least about the upper half of the groove contour.

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