BALLSCREW ASSEMBLY WITH DETECTION FEATURE

A ballscrew assembly (10) for an actuator is provided. In an embodiment, the ballscrew assembly includes a ball nut assembly (110) including a view port (70); a ballscrew (30) provided within at least a portion of the ball nut assembly (110); an inner rod (40) provided within the ballscrew (30) in t...

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Bibliographische Detailangaben
Hauptverfasser:	MAINES, GAREN R, CAVALIER, DONALD R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AEROPLANES AIRCRAFT AVIATION BLASTING COSMONAUTICS ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HELICOPTERS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A ballscrew assembly (10) for an actuator is provided. In an embodiment, the ballscrew assembly includes a ball nut assembly (110) including a view port (70); a ballscrew (30) provided within at least a portion of the ball nut assembly (110); an inner rod (40) provided within the ballscrew (30) in the direction of the longitudinal axis, the inner rod (40) including an enlarged end portion; and a compression mechanism, such that at least a portion of the compression mechanism is provided between the enlarged end portion (42) and the ballscrew (30). In another embodiment the assembly is configured such that when the inner rod (40) is in a failed state, the compression mechanism provides a force that moves the visual indicator (60) toward the view port (70). In another embodiment, the assembly includes a proximity sensor (118) in addition to, or in lieu, of a view port (70) to detect a failure.