DETECTION OF THE ABSORPTION OF EFFORT BY A SECONDARY ROAD OF A FLIGHT CONTROL ACTUATOR.

摘要

Device for detecting the absorption of effort by a secondary track of a flight control actuator (1) having a primary track (3, 4, 5) and a secondary track (7, 8, 9, 10) suitable for absorb the stress of the primary track in the event of failure of the latter, the primary path comprising a screw (3), the screw terminating by a coupling piece of the primary track, the secondary track comprising a safety rod (9) of absorption of stress that passes through the screw (3), this rod (9) being terminated by a male form (7) housed - with play when the primary track supports the effort - in a female form (10) of a coupling piece (8) of the secondary track, the male form (7) terminating the rod (9) and the female form (10) of the spherical or revolution coupling piece (8), characterized in that at least one sensing element (11 ) is arranged on the male form (7) that ends the rod, on the hem form bra (10) or between these two forms, this detection element (11) being intended to be worn under the effect of friction between the male form (7) and the female form (10) when the secondary track is loaded and absorbs the stress, this detection element (11) being connected or being suitable to be connected to appropriate treatment means to detect the wear of this detection element (11).