Control device for the pitch of blades, and propeller

Abstract

The invention relates to a control device (1) of the pitch of blades of a rotor of a propeller, comprising: a radial shaft (6), a pivot (8) connected to the blade, the rotation of the radial shaft (6) driving the rotation of the pivot (8) for the modification of the pitch of the blade, characterised in that it comprises: an insert (12) fixed rigidly to the pivot (8) so as to block their relative displacement, the radial shaft (6) being configured to drive in rotation the insert (12), at least one peg (24) passing through the insert (12) and the pivot (8) for transmission of the rotation of the insert (12) to the pivot (8), a heat insulation element (15) arranged between the insert (12) and the pivot (8), whereof the thermal conductivity is less than the thermal conductivity of the pivot (8) and of the radial shaft (6). The invention also relates to a propeller comprising this device.

Dependencies are inferred from the claim text.