Device for lifting wind turbine blades.

Abstract

Device for lifting wind turbine blades, intended to be installed on cranes (1) for lifting wind turbine blades (2) (3), characterized in that it consists of an elongated horizontal arm (4) terminated at its ends in hooks (5) assisted by respective electric actuators that control their opening and closing, on which the slings (7) for securing the blade (2) are hung, the arm including at its ends lugs (8) to which diagonal braces (9) are attached, which in turn are attached to the main hook (10) of the crane (1), forming an isosceles triangle, with the particularity that the electric actuators (6) of the hooks that support the slings are associated with a main control box (11), which is attached to the elongated horizontal arm (4) and which includes an internal wireless communication module, preferably using radio frequency, {1.} A device for lifting wind turbine blades, according to claim 1, characterized in that it includes a pair of pushbuttons (15), installed at both ends of the horizontal arm (4) with two buttons for opening (16) and closing (17) respective hooks (5) by means of the corresponding electric actuators while the remote control (14) is not activated.