Electric actuator with a ball-screw

Abstract

Abstract 1. Electric jack adapted to move a load linearly and which comprises an electric motor (25), means comprising a nut (15) and a ball screw (5) for transforming the rotational movement of the shaft (24) of the motor (25) into a linear movement of the load, means (12) for preventing the screw (5) from rotating and means (16, 17) for preventing the nut (15) from moving axially, the screw (5) comprising means (6) for connection to a load situated at one end of the screw, whereas the nut (15) is connected to the output shaft (24) of the motor (25) so as to be driven in rotation by this motor, characterized in that the body of the jack is cylindrical and in that the screw (5) is fast, on its side opposite the load with respect to the motor, with a bearing (29) which may slide in the body, said bearing (9) being provided with a key (12) engaged in a groove (14) formed on the inner face of the body.

Inventors

• 👤 Daniel Michel Van Oost
• 👤 Christian Francois

Bibliographic Details