A TRACTION BELT OF ELEVATOR SYSTEM AND A PULLEY THEREOF, AND AN ELEVATOR WITH THE TRACTION BELT AND THE PULLEY

摘要

The invention provides a traction belt of elevator system and a pulley thereof, and an elevator with the traction belt and the pulley. The traction belt of the elevator system comprises: bearing units that extend along the length of the whole traction be an early warning unit that extends parallel to the bearing units along the length of the whole traction belt, and the bending fatigue life thereof is shorter than that of the bearing units; and a coating layer that wraps outside the bearing units and the early warning unit, wherein the traction belt is in a strip shape with a uniform thickness, and has at least one continuously fluctuating contour in the width direction, so that a concave section and a convex section are formed on A-side that matches with the traction sheave and on B-side that matches with the guiding pulley, respectively. The pulley comprises a traction sheave and a guiding pulley, and the surface of the traction sheave has two different friction coefficients. Through cooperation of the continuously fluctuating contours, axial movement of the traction belt when passing through the gear train is prevented.