Stretching assembly of elevator apparatus

Abstract

The invention discloses a stretching component of elevator devices, and comprises a plurality of supporting bodies that have clad and support core wires and an including body that includes the supporting body, wherein, the including body takes a shape of a flat zonal body structure, and the width of the including body is at least larger than the thickness of the including body; the clad of the supporting body and the including body are made of non-metallic materials, and the supporting body and the including body can move relatively; the supporting body is arranged along the horizontal direction at intervals. The stretching component of the invention can eliminate the deformation influence of the including body, improves the service life of the stretching component, has the advantages of simple structure, long service life and good friction property, etc., and leads elevator systems to be more flexible.

Description

technical field [0001] The invention relates to a tensioning assembly for traction elevator installations. Background technique [0002] In conventional elevator installations driven by traction sheaves, the tensile components are steel wire ropes. There are certain restrictions on the use of wire ropes, such as the limitation of the traction force between the wire rope and the traction pulley, the requirements on the bending performance and fatigue performance of the wire rope. Due to the limitation of the traction force, in order to increase the traction force, it is often necessary to increase the wrap angle between the wire rope and the traction pulley, or to slot the traction pulley. This will reduce the life of the wire rope. At the same time, due to the requirements of the bending performance and fatigue performance of the wire rope, the minimum diameter of the wire rope is 8mm (GB7588-2003 standard), and the diameter of the traction pulley is at least 40 times the ...

AI Technical Summary

Problems solved by technology

First, there is meshing noise between the rope and the traction sheave

Secondly, due to the small diameter of the rope core, it is necessary to increase the number of ropes in the elevator system, which leads to an increase in the complexity of the system layout

Moreover, as the number of ropes increases, the vibration of the ropes is more obvious, so the vibration transmitted to the elevator car increases accordingly, resulting in greater noise in the car

Thirdly, the contact pressure between the rope and the traction sheave increases, resulting in an increase in the contact pressure between the inclusion and the rope core, which reduces the life of the inclusion and the rope core and affects the life of the rope

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