Over running clutch for a direct drive motor operator

H - Electricity – 01 – H

Patent

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Details

H01H 3/30 (2006.01)

Patent

CA 2673241

An over running clutch assembly for an electrical switching apparatus is provided. The over running clutch assembly includes a sprocket and a hub assembly. The hub assembly is rotatably coupled to the sprocket and structured to rotate in a charging direction relative to the sprocket. The sprocket is fixed to a motor shaft. The hub assembly is structured to be disengagably fixed to a cam shaft in the charging assembly. A manual charging handle is also coupled to the cam shaft and is structured to rotate the cam shaft in a charging direction. In this configuration, an operator may charge the closing springs of the electrical switching apparatus using either the handle assembly or the motor. When the handle assembly is used to charge the closing springs, the cam shaft causes the hub assembly to rotate over the sprocket. Thus, the rotation of the cam shaft is not transferred to the motor. When the motor is used, the motor turns both the sprocket and the hub assembly. The hub assembly transfers the rotational force from the motor to the cam shaft.

Ensemble embrayage à roue libre pour appareil de commutation électrique, qui comprend un barbotin et un ensemble moyeu. L'ensemble moyeu est couplé rotatif au barbotin et conçu pour tourner dans le sens de charge par rapport au barbotin. Le barbotin est fixé à un arbre du moteur. L'ensemble moyeu est conçu pour être fixé libérable à l'ensemble de charge. Une manette de charge manuelle également couplée à l'arbre à cames sert à faire tourner cet arbre dans le sens de charge. Selon cet agencement, les ressorts de fermeture de l'appareil de commutation électrique peuvent être mis sous charge au moyen soit de l'ensemble poignée, soit du moteur. Lorsque l'ensemble poignée est utilisé à cette fin, l'arbre à cames fait tourner l'ensemble moyeu sur le barbotin, faisant que le mouvement de rotation de l'arbre à cames n'est pas transmis au moteur. Lorsqu'il est utilisé, le moteur fait tourner le barbotin et l'ensemble moyeu. Cet ensemble moyeu transfert la force de rotation du moteur à l'arbre à cames.

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