Power transmission sheave
AssigneeDeere & Company
InventorDonald R. Whitenight
Life of this patent
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Abstract
A sheave structure adapted to prevent the build-up of soil and other foreign materials in the v-grooves of sheaves utilized with ground engaging implements such as rotary tillers is provided. The sheave is constructed of mating halves, which when joined form a sheave with a v-groove that includes circumferentially spaced apart openings in the v-groove apex, below the belt contact area of the flanges. The openings are provided adjacent to, but below the belt contact area so that the belt pushes against any materials that collect in the v-groove. In this way, the belt serves to break apart the materials and push them through the openings. With this structure, accumulations of materials in the sheave are minimized, belt contact with the sheave flanges is improved and power transmission is enhanced.
Claims11
In a sheave having a central hub portion with a transversely extending axis of rotation,
- first and second flanges carried by the hub portion and radially spaced outwardly therefrom, the flanges diverging from an apex to form a v-shaped groove around the circumference of the sheave that is adapted to receive a belt means, each flange having a portion spaced from the apex that engages the belt means, and
- means facilitating the expulsion of foreign material from the groove including circumferentially spaced-apart openings carried in the sheave, the openings being adjacent to the flange portions and spaced radially inwardly therefrom.
In a sheave having a central hub portion with first and second flanges carried radially outwardly therefrom, the flanges diverging outwardly from an apex to form a v-shaped groove around the circumference of the sheave that is adapted to receive a belt means, each flange having a wall portion spaced from the apex that engages the belt means, and
- spaced apart openings carried in the flanges, said openings being circumferentially spaced around the sheave with the openings of each flange being aligned with the openings of the other flange, said openings also being adjacent to and inwardly spaced of the flange wall portions.
Dependencies are inferred from the claim text.