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US 8,943,919 B2Granted
Over shaft rotary actuator with internal clamp
AssigneeSchneider Electric Buildings, LLC
InventorWilliam P. Windgassen
Life of this patent
Estimating the term…
Abstract
An over shaft rotary actuator with an internal clamp arrangement is provided. The actuator includes an internal clamp arrangement carried within a housing. A drive train and a motor also carried within the housing and mechanically coupled to the internal clamp arrangement. The internal clamp arrangement is centered on the plane that a driving torque is applied to the internal clamp arrangement to rotate a shaft.
Claims18
A rotary actuator comprising:
- a housing;
- a motor carried within the housing;
- a clamp arrangement carried within the housing, the clamp arrangement operable to apply a clamping force to a shaft;
- and
- a drive train carried within the housing and mechanically coupling the motor to the clamp arrangement to rotate the clamp arrangement, the clamp arrangement including:
- a first bearing for rotatably supporting the clamp arrangement relative to the housing;
- a second bearing for rotatably supporting the clamp arrangement relative to the housing;
- a gear portion interposed between the first and second bearings;
- and
- wherein the clamp arrangement includes a pair of casing member halves, the casing member halves providing the first and second bearings, the casing member halves attached to the gear portion such that rotation of the gear portion about a shaft axis rotates the casing member.
7 more elements
A rotary actuator comprising:
- a housing
- a clamp assembly rotably mounted to the housing, the clamp assembly operable to apply a clamping force to a shaft, the clamp assembly including:
- a first bearing for rotatably supporting the clamp arrangement relative to the housing;
- a second bearing for rotatably supporting the clamp arrangement relative to the housing;
- a gear member interposed between the first and second bearings,
- wherein the clamp assembly includes a pair of casing member halves, the casing member halves providing the first and second bearings, the casing member halves attached to the gear member such that rotation of the gear member about a shaft axis rotates the casing members.
3 more elements
A rotary actuator comprising:
- a housing
- a clamp assembly rotably mounted to the housing, the clamp assembly operable to apply a clamping force to a shaft, the clamp assembly including:
- a first bearing for rotatably supporting the clamp arrangement relative to the housing;
- a second bearing for rotatably supporting the clamp arrangement relative to the housing;
- a gear member interposed between the first and second bearings,
- wherein the clamp assembly includes a pair of casing member halves that define the first and second bearings, the first and second bearings being coaxial about a rotational axis, the clamp assembly further includes a clamp including an opening aligned with the first and second bearings such that a shaft is able to be received through the opening and the first and second bearings generally along the rotational axis.
3 more elements
Dependencies are inferred from the claim text.