Stretching component of elevator and elevator device

Abstract

The invention discloses a stretching component of an elevator device, which comprises a plurality of carrying bodies of bearing core threads provided with coating layers, and an enclosing body for enclosing the carrying bodies; wherein, the outer appearance of the enclosing body adopts a flat strap-shaped structure, and the width size of the inclosing body is at least larger than the thickness size thereof; the coating layers and the enclosing body of the carrying bodies are made of non-metal material, the carrying bodies are adjacently arranged, the relative motion can be performed between adjacent carrying bodies, as well as between the carrying bodies and the enclosing body. The invention also discloses the elevator device adopting the stretching component. The stretching component can eliminate the deformation of the enclosing body, and the service life of the stretching component is enhanced; the stretching component has the advantages that the structure is simple, the service life is long, and the friction characteristics are good, and meanwhile the arrangement of an elevator system is more flexible.

Description

technical field [0001] The invention relates to a tensioning assembly for traction elevator installations. The invention also relates to an elevator device using the stretching assembly. 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-...

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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