Combination coupling and sheave
AssigneeReliance Electric Company
InventorEdward F. Krome, Jr.
Life of this patent
Estimating the term…
Abstract
A combination coupling and sheave in a variable speed belt drive in which a variable pitch sheave has a fixed flange, an axially shiftable flange and a shaft connected to the drive motor by a flexible coupling with the hubs thereof secured to the motor and sheave shaft. The inventive concept includes mounting the coupling hub on the sheave shaft in a bearing of a pillow block at the end of the shaft and connecting the fixed flange of the sheave to the hub, so that the fixed flange is driven directly by the hub rather than solely by the shaft, and the slidable flange is driven through the shaft, thus creating split power paths between the flexible coupling and the fixed flange and between the coupling and the slidable flange through the sheave shaft, thereby reducing the load on the operating parts of the sheave.
Claims11
Combination coupling and sheave in a variable speed belt drive, comprising a variable pitch sheave having a shaft, an axially slidable flange mounted on said shaft and a fixed flange in axial relationship with said slidable flange, bearings at each end of said shaft, a coupling connected to said shaft and having a hub journaled in one of said bearings and having an end facing said fixed flange, a means for securing said hub to said shaft, and means extending generally parallel with said shaft for securing said fixed flange to said end of said hub for rotation therewith.
Dependencies are inferred from the claim text.