Guide rails joint alignment and elimination of the skewing effect

To satisfy the growing demand for improvement in “ride comfort” of elevators we developed a junction system denominated Ultra System as an alternative to the traditional plate. In this system, the guides to be connected are blocked between a base plate and steel stiffeners tightened by the traction of eight screws. The study has been developed through a process of Finite Element analysis simulating the operational load conditions and utilizing the stress and deformation results. A comparative analysis between the systems, the traditional type junctions and the continuous guide has been carried out to detect the expected advantages of the new junction. The analysis is carried out in extreme loading condition for guide rail T140-1/B. This comparison demonstrates that the introduction of supplementary stiffeners guarantees a stronger junction stiffness than that obtained under the conditions of a continuous guide.