Linear, electromechanical positioning drive

摘要

The positioning drive includes a gearing motor (2) with an output shaft (9), a positioning element (15) connected with the output shaft and linearly adjustable, and a console part (4, 5), at which the gearing motor and the positioning element (15) are stored. The gearing motor and/or its casing (8) is rotatably mounted at the console part, coaxial to the output shaft, so that an opposite torque appearing at the motor casing through a torque produced at the output shaft moves the motor casing because of its revolving mounting, at least negligibly, against the rotation direction of the output shaft. The positioning element is limited and/or blocked through a clamping arrangement (21) which comprises an adjustable, likewise at the console part mounted, wave shaft arrangement (28) which engages with a clamping part, and adjusts thereby the tension of the clamping part. The wave shaft arrangement is connected through a transmission device (27) with the motor casing, whereby the movement of the motor casing caused by the opposite torque is transferred as a lifting movement to the wave shaft arrangement, and adjusts thereby the tension of the clamping arrangement.