Traction belt and belt wheel of elevator system, and elevator adopting traction belt and belt wheel

Abstract

The invention provides a traction belt and a belt wheel of an elevator system and an elevator adopting the traction belt and the belt wheel. The traction belt of the elevator system comprises a bearing unit, an early warning unit and a coating layer, wherein the bearing unit extends along the length of the whole traction belt, the early warning unit extends along the length of the whole traction belt and is parallel to the bearing unit, and the bending fatigue life of the early warning unit is lower than that of the bearing unit; and the coating layer wraps the bearing unit and the early warning unit, the traction belt is in a strip shape with a uniform thickness, and at least one continuously fluctuating contour is formed in the width direction, so that a concave part and a convex part are formed on the side A matched with a traction wheel and the side B matched with a guide wheel. The belt wheel comprises the traction wheel and the guide wheel, and the surface of the traction wheel is provided with two different friction coefficients. Through cooperation of the continuously fluctuating contours, axial movement of the traction belt is prevented when passing through a wheel train.

Description

technical field [0001] The invention relates to a drive device for an elevator system, in particular to an elevator traction belt and a pulley. Background technique [0002] The traction belt has been used in the elevator industry for many years. Compared with the traditional wire rope traction method, the traction belt has the advantages of longer service life, lower noise, lower maintenance costs, and compact structure. [0003] Among the elevator system traction belts in the prior art, it is most common to use a flat belt as the traction belt. In order to avoid the axial movement of the belt along the gear train during operation, the pulley is designed to have a convex crown profile along the section of the rotating shaft, see Figure 8 shown. Although such a design helps to solve the problem of axial play when the traction belt passes through the wheel train, the crown-shaped pulley causes the matching traction belt to deform in the width direction, thereby increasing t...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a traction belt and its pulley of an elevator system, to solve the problem of the traction belt moving along the axial direction of the wheel train in the elevator system of the prior art, and there is no traction belt in the elevator system. Deformation in the width direction

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