Vibration damping device for the load suspension of a tower crane

Abstract

Vibration damping device for the load suspension of a tower crane includes a load trolley, a rope, a rope deflection sensor, a control signal generator, and a position change actuator. The tower crane’s load trolley is equipped with a controlled rope displacement mechanism connected to the position change drive of the controlled rope displacement mechanism. The controlled rope displacement mechanism is shaped like a triangular prism, with rope interaction units installed at each vertex; one vertex of the triangular prism is fixed relative to the load trolley, while the other two are designed to be movable; a sensor for detecting the rope’s deflection from the normal is connected to a control signal generator.