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Stretching component of elevator and elevator device

A technology for stretching components and elevators, which is applied to elevators, textile cables, transportation and packaging in buildings, etc., can solve the problems of increased system layout complexity, reduced life of wraps and rope cores, and high car noise.

Active Publication Date: 2012-12-12
SHANGHAI MITSUBISHI ELEVATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Stretching component of elevator and elevator device
  • Stretching component of elevator and elevator device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] see figure 1 As shown, the tensile assembly includes a wrapping body 1 , a carrier body 2 and a sheath 6 , and the carrier body 2 is composed of a covering layer 3 and a carrying core wire 4 . There are 9 strands on the periphery of the load-bearing core wire 4 . In the center of the load-bearing core wire 4 there is a strand. Each strand of the carrying core wire 4 is formed by parallel twisting of a plurality of metal core wires. In this way, the contact between the metal core wires of each strand is a line contact, so the contact stress between the metal core wires is reduced. At the same time, the carrying core wire 4 can maintain a good shape. In order to improve the bending fatigue strength of the load-bearing core wire 4, the metal core wire is required to be relatively thin, about 0.15-0.6mm. In addition, in order to further increase the bending fatigue life of the load-bearing core wire 4 , the ratio of the diameter of the load-bearing core wire 4 to the di...

Embodiment 2

[0032] see figure 2 As shown, the difference from the first embodiment is that three holes 5 are provided in this embodiment. Holes 5 are located between adjacent carriers 2 . The effect of the hole 5 is that the arrangement between the stretching assembly and the traction pulley and the anti-sheave does not necessarily have to be parallel. Because the hole 5 can eliminate the internal stress on the inclusion 1 when the stretching assembly is not parallel to the arrangement of the traction sheave and the anti-sheave. Thus does not affect the life of the tensile components.

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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, an enclosing body for enclosing the carrying bodies, and a plurality of protective sleeves between the enclosing body and 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 enclosed by the protective sleeves; and the protective sleeves and the enclosing body can move relatively. 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 installation using the tensioning 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 (G...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D07B1/22D07B1/16B66B11/00
Inventor 周双林
Owner SHANGHAI MITSUBISHI ELEVATOR CO LTD
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