Actuator, has anti-twist device comprising separate elongate sliding profile whose sliding surface is formed convex with respect to rotation axis, where profile is fixed to screw nut or flange, and guiding nut is adapted to sliding surface

摘要

The actuator (10) has a flange (23) i.e. thin-walled pipe, firmly connected with a screw nut (20). An anti-twist device (50) is provided between the screw nut or the flange and a housing (30). The anti-twist device has a separate elongate sliding profile (51) whose sliding surface is formed convex with respect to a rotation axis (12). The profile with a guiding nut is guidably engaged in the housing, where the guiding nut is adapted to the sliding surface. The profile is fixed to the screw nut or the flange. The housing is made of aluminum, and the profile consists of polyoxymethylene.