Retained key shaft mounting assembly
AssigneeReliance Electric Industrial Company
InventorAllyn E. Phillips
Life of this patent
Estimating the term…
Abstract
An improved keyed adapter assembly for securing a component to a rotatable shaft, the adapter assembly including an adapter member with an interior end face and an opposite exterior end face, the adapter member including an outer surface for receipt of a component therein, and an internal bore for receipt of a rotatable shaft therethrough. The internal bore includes a keyway therein. The adapter assembly also includes a key for securing the adapter for rotation with the rotatable shaft, the key including a longitudinal portion extending in the direction of the shaft, and tab portion extending outwardly with respect to the longitudinal portion. The tab portion is adapted to engage the interior end face of the adapter member when the adapter assembly is mounted on a shaft, such as the shaft of a gear reducer.
Claims19
An improved backstop for preventing reversal of shaft rotation in a mechanical device having a rotatable shaft, said backstop comprising:
- a ratchet adapted to be fixedly attached to a gear reducer housing and including a bore for receipt of a gear reducer shaft therethrough;
- a rotating hub including a bore therethrough for receipt of said reducer shaft therethrough, said hub including dog assemblies for engagement with said ratchet when said shaft is rotated in a predetermined direction;
- an adapter for mounting said rotating hub onto said shaft, said adapter including a keyway for receipt of a key therein, said adapter including an interior end face on the end of said adapter extending into said backstop, and an exterior end face on the opposite end;
- and
- a unitary key for securing said adapter for rotation with said shaft, said key including a longitudinal portion extending in the direction of said shaft and a tab portion extending outwardly with respect to said longitudinal portion, said tab portion adapted to engage said interior end face of said adapter when said backstop is assembled on a reducer shaft to prevent said key from moving in said keyway in the direction of said exterior end face.
An improved speed reducer with a backstop for preventing reversal of shaft rotation, said reducer comprising:
- a gear reducer housing containing a high speed input shaft, a low speed output shaft and reduction gears therebetween;
- a ratchet fixedly attached to said gear reducer housing and including a bore for receipt of the gear reducer high speed input shaft therethrough;
- a rotating hub including a bore therethrough for receipt of said high speed reducer shaft therethrough, said hub including dog assemblies for engagement with said ratchet when said shaft is rotated in a predetermined reverse direction;
- a tapered adapter for mounting said rotating hub onto said high speed shaft, said adapter including a keyway for receipt of a key therein, said adapter including an interior end face on the end of said adapter facing said reducer housing and an exterior end face on the opposite end;
- and
- a unitary key for securing said adapter for rotation with said high speed shaft, said key including a longitudinal portion extending in the direction of said shaft and a tab portion extending outwardly with respect to said shaft, said tab portion engaging said interior end face of said adapter to prevent said key from moving in said keyway in the direction of said exterior end face when said reducer is operated.
An improved keyed adapter assembly for securing a component to a rotatable shaft, said adapter assembly comprising:
- an adapter member including an interior end face and an opposite exterior end face, said adapter member including an outer surface for receipt of a component thereon and an internal bore for receipt of a rotatable shaft therethrough, said internal bore including a keyway therein;
- and
- a unitary key for securing said adapter for rotation with said rotatable shaft, said key including a longitudinal portion extending in the direction of said shaft, and a tab portion extending outwardly with respect to said longitudinal portion, said tab portion adapted to engage said interior end face of said adapter member when said adapter assembly is mounted on a shaft.
Dependencies are inferred from the claim text.