Preloading device for a roller screw mechanism guided in rotation

The present invention relates to a linear actuator. The linear actuator comprises a roller screw mechanism (24) guided in rotation with respect to a structure (26) by two angular-contact ball bearings (33a, 33b), the roller screw mechanism (24) comprising rollers (28) interposed between an endless s...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	COMBERNOUX THOMAS, CHASSOULIER DAMIEN, BLANC ALAIN, BAUDASSE YANNICK
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention relates to a linear actuator. The linear actuator comprises a roller screw mechanism (24) guided in rotation with respect to a structure (26) by two angular-contact ball bearings (33a, 33b), the roller screw mechanism (24) comprising rollers (28) interposed between an endless screw (25) and two tapped rings (29a, 29b) which are joined together in rotation and free in translation. Each tapped ring (29a, 29b) is secured to an inner ring of a ball bearing (33a, 33b). The linear actuator further comprises a single preloading device (36) capable of applying load between two outer rings (32a, 32b) of the angular-contact ball bearings (33a, 33b) respectively, thereby simultaneously allowing the loading of the roller screw mechanism (24) and the rotational guidance of the roller screw mechanism (24) with respect to the structure (26).